java.lang.Object
- org.apache.derby.impl.jdbc.ConnectionChild
- - org.apache.derby.impl.jdbc.EmbedDatabaseMetaData

All Implemented Interfaces:

java.security.PrivilegedAction<java.lang.Object>, java.sql.DatabaseMetaData, java.sql.Wrapper
```
public class EmbedDatabaseMetaData
extends ConnectionChild
implements java.sql.DatabaseMetaData, java.security.PrivilegedAction<java.lang.Object>
```
This class provides information about the database as a whole.
Many of the methods here return lists of information in ResultSets. You can use the normal ResultSet methods such as getString and getInt to retrieve the data from these ResultSets. If a given form of metadata is not available, these methods should throw a SQLException.
Some of these methods take arguments that are String patterns. These arguments all have names such as fooPattern. Within a pattern String, "%" means match any substring of 0 or more characters, and "_" means match any one character. Only metadata entries matching the search pattern are returned. If a search pattern argument is set to a null ref, it means that argument's criteria should be dropped from the search.
A SQLException will be thrown if a driver does not support a meta data method. In the case of methods that return a ResultSet, either a ResultSet (which may be empty) is returned or a SQLException is thrown.
This implementation gets instructions from the Database for how to satisfy most requests for information. Each instruction is either a simple string containing the desired information, or the text of a query that may be executed on the database connection to gather the information. We get the instructions via an "InstructionReader," which requires the database Connection for initialization.
Those few pieces of metadata that are related to the driver, rather than the database, come from a separate InstructionReader. Note that in that case it probably doesn't make sense to allow an instruction to specify a query.

See Also:

JDBC 3.0 Specification

Field Summary

Fields
Modifier and Type	Field	Description
`private GenericConstantActionFactory`	`constantActionFactory`
`private static int`	`ILLEGAL_UDT_TYPE`
`private static java.util.Properties`	`queryDescriptions`	Cached query descriptions from metadata.properties.
`private static java.util.Properties`	`queryDescriptions_net`	Cached query descriptions from metadata_net.properties.
`private java.lang.String`	`url`

Fields inherited from class org.apache.derby.impl.jdbc.ConnectionChild
factory, localConn

Fields inherited from interface java.sql.DatabaseMetaData
attributeNoNulls, attributeNullable, attributeNullableUnknown, bestRowNotPseudo, bestRowPseudo, bestRowSession, bestRowTemporary, bestRowTransaction, bestRowUnknown, columnNoNulls, columnNullable, columnNullableUnknown, functionColumnIn, functionColumnInOut, functionColumnOut, functionColumnResult, functionColumnUnknown, functionNoNulls, functionNoTable, functionNullable, functionNullableUnknown, functionResultUnknown, functionReturn, functionReturnsTable, importedKeyCascade, importedKeyInitiallyDeferred, importedKeyInitiallyImmediate, importedKeyNoAction, importedKeyNotDeferrable, importedKeyRestrict, importedKeySetDefault, importedKeySetNull, procedureColumnIn, procedureColumnInOut, procedureColumnOut, procedureColumnResult, procedureColumnReturn, procedureColumnUnknown, procedureNoNulls, procedureNoResult, procedureNullable, procedureNullableUnknown, procedureResultUnknown, procedureReturnsResult, sqlStateSQL, sqlStateSQL99, sqlStateXOpen, tableIndexClustered, tableIndexHashed, tableIndexOther, tableIndexStatistic, typeNoNulls, typeNullable, typeNullableUnknown, typePredBasic, typePredChar, typePredNone, typeSearchable, versionColumnNotPseudo, versionColumnPseudo, versionColumnUnknown

Constructor Summary

Constructors
Constructor Description

EmbedDatabaseMetaData(EmbedConnection connection, java.lang.String url)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`allProceduresAreCallable()`	Can all the procedures returned by getProcedures be called by the current user?
`boolean`	`allTablesAreSelectable()`	Can all the tables returned by getTable be SELECTed by the current user?
`boolean`	`autoCommitFailureClosesAllResultSets()`	Returns whether or not all open `ResultSet`s on a `Connection` are closed if an error occurs when auto-commit in enabled.
`boolean`	`dataDefinitionCausesTransactionCommit()`	Does a data definition statement within a transaction force the transaction to commit?
`boolean`	`dataDefinitionIgnoredInTransactions()`	Is a data definition statement within a transaction ignored?
`boolean`	`deletesAreDetected(int type)`	JDBC 2.0 Determine whether or not a visible row delete can be detected by calling ResultSet.rowDeleted().
`boolean`	`doesMaxRowSizeIncludeBlobs()`	Did getMaxRowSize() include LONGVARCHAR and LONGVARBINARY blobs?
`private java.sql.ResultSet`	`doGetBestRowId(java.lang.String catalogPattern, java.lang.String schemaPattern, java.lang.String table, int scope, boolean nullable, java.lang.String queryPrefix)`	Does the actual work for the getBestRowIdentifier metadata calls.
`private java.sql.ResultSet`	`doGetCols(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String tableNamePattern, java.lang.String columnNamePattern, java.lang.String queryName)`	Does the actual work for the getColumns metadata calls.
`private java.sql.ResultSet`	`doGetIndexInfo(java.lang.String catalog, java.lang.String schema, java.lang.String table, boolean unique, boolean approximate, java.lang.String queryName)`	Does the actual work for the getIndexInfo metadata calls.
`private java.sql.ResultSet`	`doGetProcCols(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String procedureNamePattern, java.lang.String columnNamePattern, java.lang.String queryName)`	Does the actual work for the getProcedureColumns metadata calls.
`private java.sql.ResultSet`	`doGetProcs(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String procedureNamePattern, java.lang.String queryName)`	Does the actual work for the getProcedures and getFunctions metadata calls.
`private java.sql.ResultSet`	`doGetVersionCols(java.lang.String catalog, java.lang.String schema, java.lang.String table, java.lang.String queryName)`	Does the actual work for the getVersionColumns metadata calls.
`boolean`	`generatedKeyAlwaysReturned()`	See DatabaseMetaData javadoc
`java.sql.ResultSet`	`getAttributes(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String typeNamePattern, java.lang.String attributeNamePattern)`	JDBC 3.0 Retrieves a description of the given attribute of the given type for a user-defined type (UDT) that is available in the given schema and catalog.
`java.sql.ResultSet`	`getBestRowIdentifier(java.lang.String catalogPattern, java.lang.String schemaPattern, java.lang.String table, int scope, boolean nullable)`	Get a description of a table's optimal set of columns that uniquely identifies a row.
`java.sql.ResultSet`	`getBestRowIdentifierForODBC(java.lang.String catalogPattern, java.lang.String schemaPattern, java.lang.String table, int scope, boolean nullable)`	Get a description of a table's optimal set of columns that uniquely identifies a row.
`java.sql.ResultSet`	`getCatalogs()`	Get the catalog names available in this database.
`java.lang.String`	`getCatalogSeparator()`	What's the separator between catalog and table name?
`java.lang.String`	`getCatalogTerm()`	What's the database vendor's preferred term for "catalog"?
`java.sql.ResultSet`	`getClientCachedMetaData()`	Get metadata that the client driver will cache.
`java.sql.ResultSet`	`getClientInfoProperties()`	JDBC 4.0
`java.sql.ResultSet`	`getColumnPrivileges(java.lang.String catalog, java.lang.String schema, java.lang.String table, java.lang.String columnNamePattern)`	Get a description of the access rights for a table's columns.
`java.sql.ResultSet`	`getColumns(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String tableNamePattern, java.lang.String columnNamePattern)`	Get a description of table columns available in a catalog.
`java.sql.ResultSet`	`getColumnsForODBC(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String tableNamePattern, java.lang.String columnNamePattern)`	Get a description of table columns available in a catalog.
`java.sql.Connection`	`getConnection()`	JDBC 2.0 Return the connection that produced this metadata object.
`java.sql.ResultSet`	`getCrossReference(java.lang.String primaryCatalog, java.lang.String primarySchema, java.lang.String primaryTable, java.lang.String foreignCatalog, java.lang.String foreignSchema, java.lang.String foreignTable)`	Get a description of the foreign key columns in the foreign key table that reference the primary key columns of the primary key table (describe how one table imports another's key.)
`java.sql.ResultSet`	`getCrossReferenceForODBC(java.lang.String primaryCatalog, java.lang.String primarySchema, java.lang.String primaryTable, java.lang.String foreignCatalog, java.lang.String foreignSchema, java.lang.String foreignTable)`	In contrast to the JDBC version of getCrossReference, this method allows null values for table names.
`int`	`getDatabaseMajorVersion()`	JDBC 3.0 Retrieves the major version number of the underlying database.
`int`	`getDatabaseMinorVersion()`	JDBC 3.0 Retrieves the minor version number of the underlying database.
`java.lang.String`	`getDatabaseProductName()`	What's the name of this database product?
`java.lang.String`	`getDatabaseProductVersion()`	What's the version of this database product?
`int`	`getDefaultTransactionIsolation()`	What's the database's default transaction isolation level?
`int`	`getDriverMajorVersion()`	What's this JDBC driver's major version number?
`int`	`getDriverMinorVersion()`	What's this JDBC driver's minor version number?
`java.lang.String`	`getDriverName()`	What's the name of this JDBC driver?
`java.lang.String`	`getDriverVersion()`	What's the version of this JDBC driver?
`java.sql.ResultSet`	`getExportedKeys(java.lang.String catalog, java.lang.String schema, java.lang.String table)`	Get a description of the foreign key columns that reference a table's primary key columns (the foreign keys exported by a table).
`java.lang.String`	`getExtraNameCharacters()`	Get all the "extra" characters that can be used in unquoted identifier names (those beyond a-z, A-Z, 0-9 and _).
`java.sql.ResultSet`	`getFunctionColumns(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String functionNamePattern, java.lang.String parameterNamePattern)`	Implements DatabaseMetaData.getFunctionColumns() for an embedded database.
`java.sql.ResultSet`	`getFunctions(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String functionNamePattern)`	Implements DatabaseMetaData.getFunctions() for an embedded database.
`java.lang.String`	`getIdentifierQuoteString()`	What's the string used to quote SQL identifiers?
`java.sql.ResultSet`	`getImportedKeys(java.lang.String catalog, java.lang.String schema, java.lang.String table)`	Get a description of the primary key columns that are referenced by a table's foreign key columns (the primary keys imported by a table).
`java.sql.ResultSet`	`getIndexInfo(java.lang.String catalog, java.lang.String schema, java.lang.String table, boolean unique, boolean approximate)`	Get a description of a table's indices and statistics.
`java.sql.ResultSet`	`getIndexInfoForODBC(java.lang.String catalog, java.lang.String schema, java.lang.String table, boolean unique, boolean approximate)`	Get a description of a table's indices and statistics.
`int`	`getJDBCMajorVersion()`	JDBC 3.0 Retrieves the major JDBC version number for this driver.
`int`	`getJDBCMinorVersion()`	JDBC 3.0 Retrieves the minor JDBC version number for this driver.
`private LanguageConnectionContext`	`getLanguageConnectionContext()`	Gets the LanguageConnectionContext for this connection.
`int`	`getMaxBinaryLiteralLength()`	How many hex characters can you have in an inline binary literal?
`int`	`getMaxCatalogNameLength()`	What's the maximum length of a catalog name?
`int`	`getMaxCharLiteralLength()`	What's the max length for a character literal?
`int`	`getMaxColumnNameLength()`	What's the limit on column name length?
`int`	`getMaxColumnsInGroupBy()`	What's the maximum number of columns in a "GROUP BY" clause?
`int`	`getMaxColumnsInIndex()`	What's the maximum number of columns allowed in an index?
`int`	`getMaxColumnsInOrderBy()`	What's the maximum number of columns in an "ORDER BY" clause?
`int`	`getMaxColumnsInSelect()`	What's the maximum number of columns in a "SELECT" list?
`int`	`getMaxColumnsInTable()`	What's the maximum number of columns in a table?
`int`	`getMaxConnections()`	How many active connections can we have at a time to this database?
`int`	`getMaxCursorNameLength()`	What's the maximum cursor name length?
`int`	`getMaxIndexLength()`	What's the maximum length of an index (in bytes)?
`long`	`getMaxLogicalLobSize()`	Added in JDBC 4.2.
`int`	`getMaxProcedureNameLength()`	What's the maximum length of a procedure name?
`int`	`getMaxRowSize()`	What's the maximum length of a single row?
`int`	`getMaxSchemaNameLength()`	What's the maximum length allowed for a schema name?
`int`	`getMaxStatementLength()`	What's the maximum length of a SQL statement?
`int`	`getMaxStatements()`	How many active statements can we have open at one time to this database?
`int`	`getMaxTableNameLength()`	What's the maximum length of a table name?
`int`	`getMaxTablesInSelect()`	What's the maximum number of tables in a SELECT?
`int`	`getMaxUserNameLength()`	What's the maximum length of a user name?
`java.lang.String`	`getNumericFunctions()`	Get a comma separated list of JDBC escaped numeric functions.
`protected java.sql.PreparedStatement`	`getPreparedQuery(java.lang.String queryName)`	Get a prepared query from system tables or metadata.properties.
`private java.sql.PreparedStatement`	`getPreparedQuery(java.lang.String queryName, boolean net)`	Either get the prepared query for the metadata call from the system tables, or from the metadata.properties or metadata_net.properties file.
`private java.sql.PreparedStatement`	`getPreparedQueryUsingSystemTables(java.lang.String nameKey, boolean net)`	Get a stored prepared statement from the system tables.
`java.sql.ResultSet`	`getPrimaryKeys(java.lang.String catalog, java.lang.String schema, java.lang.String table)`	Get a description of a table's primary key columns.
`java.sql.ResultSet`	`getProcedureColumns(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String procedureNamePattern, java.lang.String columnNamePattern)`	Get a description of a catalog's stored procedure parameters and result columns.
`java.sql.ResultSet`	`getProcedureColumnsForODBC(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String procedureNamePattern, java.lang.String columnNamePattern)`	Get a description of a catalog's stored procedure parameters and result columns.
`java.sql.ResultSet`	`getProcedures(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String procedureNamePattern)`	Get a description of stored procedures available in a catalog.
`java.sql.ResultSet`	`getProceduresForODBC(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String procedureNamePattern)`	Get a description of stored procedures available in a catalog.
`java.lang.String`	`getProcedureTerm()`	What's the database vendor's preferred term for "procedure"?
`java.sql.ResultSet`	`getPseudoColumns(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String tableNamePattern, java.lang.String columnNamePattern)`	See DatabaseMetaData javadoc.
`private java.util.Properties`	`getQueryDescriptions(boolean net)`	Return all queries found in either metadata.properties or metadata_net.properties.
`private java.lang.String`	`getQueryFromDescription(java.lang.String queryName, boolean net)`	Given a queryName, find closest match in queryDescriptions.
`int`	`getResultSetHoldability()`	JDBC 3.0 Retrieves the default holdability of this ResultSet object.
`java.sql.RowIdLifetime`	`getRowIdLifetime()`
`java.sql.ResultSet`	`getSchemas()`	Get the schema names available in this database.
`java.sql.ResultSet`	`getSchemas(java.lang.String catalog, java.lang.String schemaPattern)`	JDBC 4.0
`java.lang.String`	`getSchemaTerm()`	What's the database vendor's preferred term for "schema"?
`java.lang.String`	`getSearchStringEscape()`	This is the string that can be used to escape '_' or '%' in the string pattern style catalog search parameters.
`protected java.sql.ResultSet`	`getSimpleQuery(java.lang.String nameKey)`	Execute a query in metadata.properties, or an SPS in the SYS schema.
`private java.sql.ResultSet`	`getSimpleQuery(java.lang.String nameKey, boolean net)`	Execute a query in metadata.properties (or SPS in the SYS schema) or metadata_net.properties (or SPS in the SYSIBM schema).
`java.lang.String`	`getSQLKeywords()`	Get a comma separated list of all a database's SQL keywords that are NOT also SQL92 keywords.
`int`	`getSQLStateType()`	JDBC 3.0 Indicates whether the SQLSTATEs returned by SQLException.getSQLState is X/Open (now known as Open Group) SQL CLI or SQL99.
`java.lang.String`	`getStringFunctions()`	Get a comma separated list of JDBC escaped string functions.
`java.sql.ResultSet`	`getSuperTables(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String typeNamePattern)`	JDBC 3.0 Retrieves a description of the table hierarchies defined in a particular schema in this database.
`java.sql.ResultSet`	`getSuperTypes(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String typeNamePattern)`	JDBC 3.0 Retrieves a description of the user-defined type (UDT) hierarchies defined in a particular schema in this database.
`java.lang.String`	`getSystemFunctions()`	Get a comma separated list of JDBC escaped system functions.
`java.sql.ResultSet`	`getTablePrivileges(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String tableNamePattern)`	Get a description of the access rights for each table available in a catalog.
`java.sql.ResultSet`	`getTables(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String tableNamePattern, java.lang.String[] types)`	Get a description of tables available in a catalog.
`java.sql.ResultSet`	`getTableTypes()`	Get the table types available in this database.
`java.lang.String`	`getTimeDateFunctions()`	Get a comma separated list of JDBC escaped time date functions.
`java.sql.ResultSet`	`getTypeInfo()`	Get a description of all the standard SQL types supported by this database.
`java.sql.ResultSet`	`getTypeInfoForODBC()`	Get a description of all the standard SQL types supported by this database.
`private java.sql.ResultSet`	`getTypeInfoMinion(java.lang.String queryName)`	Get a description of the standard SQL types supported by this database.
`java.sql.ResultSet`	`getUDTs(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String typeNamePattern, int[] types)`	JDBC 2.0 Get a description of the user-defined types defined in a particular schema.
`java.lang.String`	`getURL()`	What's the url for this database?
`java.lang.String`	`getUserName()`	What's our user name as known to the database?
`java.sql.ResultSet`	`getVersionColumns(java.lang.String catalog, java.lang.String schema, java.lang.String table)`	Get a description of a table's columns that are automatically updated when any value in a row is updated.
`java.sql.ResultSet`	`getVersionColumnsForODBC(java.lang.String catalog, java.lang.String schema, java.lang.String table)`	Get a description of a table's columns that are automatically updated when any value in a row is updated.
`boolean`	`insertsAreDetected(int type)`	JDBC 2.0 Determine whether or not a visible row insert can be detected by calling ResultSet.rowInserted().
`boolean`	`isCatalogAtStart()`	Does a catalog appear at the start of a qualified table name?
`boolean`	`isReadOnly()`	Is the database in read-only mode?
`boolean`	`isWrapperFor(java.lang.Class<?> iface)`	Returns whether or not this instance implements the specified interface.
`private void`	`loadQueryDescriptions()`	Loads the query descriptions from metadata.properties and metadata_net.properties into `queryDescriptions` and `queryDescriptions_net`.
`boolean`	`locatorsUpdateCopy()`	JDBC 3.0 Indicates whether updates made to a LOB are made on a copy or directly to the LOB.
`private boolean`	`notInSoftUpgradeMode()`	check if the dictionary is at the same version as the engine.
`boolean`	`nullPlusNonNullIsNull()`	Are concatenations between NULL and non-NULL values NULL?
`boolean`	`nullsAreSortedAtEnd()`	Are NULL values sorted at the end regardless of sort order?
`boolean`	`nullsAreSortedAtStart()`	Are NULL values sorted at the start regardless of sort order?
`boolean`	`nullsAreSortedHigh()`	Are NULL values sorted high?
`boolean`	`nullsAreSortedLow()`	Are NULL values sorted low?
`boolean`	`othersDeletesAreVisible(int type)`	JDBC 2.0 Determine whether deletes made by others are visible.
`boolean`	`othersInsertsAreVisible(int type)`	JDBC 2.0 Determine whether inserts made by others are visible.
`boolean`	`othersUpdatesAreVisible(int type)`	JDBC 2.0 Determine whether updates made by others are visible.
`boolean`	`ownDeletesAreVisible(int type)`	JDBC 2.0 Determine whether a result set's deletes are visible.
`boolean`	`ownInsertsAreVisible(int type)`	JDBC 2.0 Determine whether a result set's inserts are visible.
`boolean`	`ownUpdatesAreVisible(int type)`	JDBC 2.0 Determine whether a result set's updates are visible.
`private void`	`PBloadQueryDescriptions()`	Read the query descriptions from metadata.properties and metadata_net.properties.
`private java.sql.PreparedStatement`	`prepareSPS(java.lang.String spsName, java.lang.String spsText, boolean net)`
`java.lang.Object`	`run()`	Performs a privileged action.
`boolean`	`storesLowerCaseIdentifiers()`	Does the database treat mixed case unquoted SQL identifiers as case insensitive and store them in lower case?
`boolean`	`storesLowerCaseQuotedIdentifiers()`	Does the database treat mixed case quoted SQL identifiers as case insensitive and store them in lower case?
`boolean`	`storesMixedCaseIdentifiers()`	Does the database treat mixed case unquoted SQL identifiers as case insensitive and store them in mixed case?
`boolean`	`storesMixedCaseQuotedIdentifiers()`	Does the database treat mixed case quoted SQL identifiers as case insensitive and store them in mixed case?
`boolean`	`storesUpperCaseIdentifiers()`	Does the database treat mixed case unquoted SQL identifiers as case insensitive and store them in upper case?
`boolean`	`storesUpperCaseQuotedIdentifiers()`	Does the database treat mixed case quoted SQL identifiers as case insensitive and store them in upper case?
`boolean`	`supportsAlterTableWithAddColumn()`	Is "ALTER TABLE" with add column supported?
`boolean`	`supportsAlterTableWithDropColumn()`	Is "ALTER TABLE" with drop column supported?
`boolean`	`supportsANSI92EntryLevelSQL()`	Is the ANSI92 entry level SQL grammar supported?
`boolean`	`supportsANSI92FullSQL()`	Is the ANSI92 full SQL grammar supported?
`boolean`	`supportsANSI92IntermediateSQL()`	Is the ANSI92 intermediate SQL grammar supported?
`boolean`	`supportsBatchUpdates()`	JDBC 2.0 Return true if the driver supports batch updates, else return false.
`boolean`	`supportsCatalogsInDataManipulation()`	Can a catalog name be used in a data manipulation statement?
`boolean`	`supportsCatalogsInIndexDefinitions()`	Can a catalog name be used in an index definition statement?
`boolean`	`supportsCatalogsInPrivilegeDefinitions()`	Can a catalog name be used in a privilege definition statement?
`boolean`	`supportsCatalogsInProcedureCalls()`	Can a catalog name be used in a procedure call statement?
`boolean`	`supportsCatalogsInTableDefinitions()`	Can a catalog name be used in a table definition statement?
`boolean`	`supportsColumnAliasing()`	Is column aliasing supported?
`boolean`	`supportsConvert()`	Is the CONVERT function between SQL types supported?
`boolean`	`supportsConvert(int fromType, int toType)`	Is CONVERT between the given SQL types supported?
`boolean`	`supportsCoreSQLGrammar()`	Is the ODBC Core SQL grammar supported?
`boolean`	`supportsCorrelatedSubqueries()`	Are correlated subqueries supported?
`boolean`	`supportsDataDefinitionAndDataManipulationTransactions()`	Are both data definition and data manipulation statements within a transaction supported?
`boolean`	`supportsDataManipulationTransactionsOnly()`	Are only data manipulation statements within a transaction supported?
`boolean`	`supportsDifferentTableCorrelationNames()`	If table correlation names are supported, are they restricted to be different from the names of the tables?
`boolean`	`supportsExpressionsInOrderBy()`	Are expressions in "ORDER BY" lists supported?
`boolean`	`supportsExtendedSQLGrammar()`	Is the ODBC Extended SQL grammar supported?
`boolean`	`supportsFullOuterJoins()`	Are full nested outer joins supported?
`boolean`	`supportsGetGeneratedKeys()`	JDBC 3.0 Retrieves whether auto-generated keys can be retrieved after a statement has been executed.
`boolean`	`supportsGroupBy()`	Is some form of "GROUP BY" clause supported?
`boolean`	`supportsGroupByBeyondSelect()`	Can a "GROUP BY" clause add columns not in the SELECT provided it specifies all the columns in the SELECT?
`boolean`	`supportsGroupByUnrelated()`	Can a "GROUP BY" clause use columns not in the SELECT?
`boolean`	`supportsIntegrityEnhancementFacility()`	Is the SQL Integrity Enhancement Facility supported?
`boolean`	`supportsLikeEscapeClause()`	Is the escape character in "LIKE" clauses supported?
`boolean`	`supportsLimitedOuterJoins()`	Is there limited support for outer joins?
`boolean`	`supportsMinimumSQLGrammar()`	Is the ODBC Minimum SQL grammar supported?
`boolean`	`supportsMixedCaseIdentifiers()`	Does the database treat mixed case unquoted SQL identifiers as case sensitive and as a result store them in mixed case?
`boolean`	`supportsMixedCaseQuotedIdentifiers()`	Does the database treat mixed case quoted SQL identifiers as case sensitive and as a result store them in mixed case?
`boolean`	`supportsMultipleOpenResults()`	JDBC 3.0 Retrieves whether it is possible to have multiple ResultSet objects returned from a CallableStatement object simultaneously.
`boolean`	`supportsMultipleResultSets()`	Are multiple ResultSets from a single execute supported?
`boolean`	`supportsMultipleTransactions()`	Can we have multiple transactions open at once (on different connections)?
`boolean`	`supportsNamedParameters()`	JDBC 3.0 Retrieves whether this database supports named parameters to callable statements.
`boolean`	`supportsNonNullableColumns()`	Can columns be defined as non-nullable?
`boolean`	`supportsOpenCursorsAcrossCommit()`	Can cursors remain open across commits?
`boolean`	`supportsOpenCursorsAcrossRollback()`	Can cursors remain open across rollbacks?
`boolean`	`supportsOpenStatementsAcrossCommit()`	Can statements remain open across commits?
`boolean`	`supportsOpenStatementsAcrossRollback()`	Can statements remain open across rollbacks?
`boolean`	`supportsOrderByUnrelated()`	Can an "ORDER BY" clause use columns not in the SELECT?
`boolean`	`supportsOuterJoins()`	Is some form of outer join supported?
`boolean`	`supportsPositionedDelete()`	Is positioned DELETE supported?
`boolean`	`supportsPositionedUpdate()`	Is positioned UPDATE supported?
`boolean`	`supportsRefCursors()`	Added in JDBC 4.2.
`boolean`	`supportsResultSetConcurrency(int type, int concurrency)`	JDBC 2.0 Does the database support the concurrency type in combination with the given result set type?
`boolean`	`supportsResultSetHoldability(int holdability)`	JDBC 3.0 Retrieves whether this database supports the given result set holdability.
`boolean`	`supportsResultSetType(int type)`	JDBC 2.0 Does the database support the given result set type?
`boolean`	`supportsSavepoints()`	JDBC 3.0 Retrieves whether this database supports savepoints.
`boolean`	`supportsSchemasInDataManipulation()`	Can a schema name be used in a data manipulation statement?
`boolean`	`supportsSchemasInIndexDefinitions()`	Can a schema name be used in an index definition statement?
`boolean`	`supportsSchemasInPrivilegeDefinitions()`	Can a schema name be used in a privilege definition statement?
`boolean`	`supportsSchemasInProcedureCalls()`	Can a schema name be used in a procedure call statement?
`boolean`	`supportsSchemasInTableDefinitions()`	Can a schema name be used in a table definition statement?
`boolean`	`supportsSelectForUpdate()`	Is SELECT for UPDATE supported?
`boolean`	`supportsStatementPooling()`	JDBC 3.0 Retrieves whether this database supports statement pooling.
`boolean`	`supportsStoredFunctionsUsingCallSyntax()`
`boolean`	`supportsStoredProcedures()`	Are stored procedure calls using the stored procedure escape syntax supported?
`boolean`	`supportsSubqueriesInComparisons()`	Are subqueries in comparison expressions supported?
`boolean`	`supportsSubqueriesInExists()`	Are subqueries in 'exists' expressions supported?
`boolean`	`supportsSubqueriesInIns()`	Are subqueries in 'in' statements supported?
`boolean`	`supportsSubqueriesInQuantifieds()`	Are subqueries in quantified expressions supported?
`boolean`	`supportsTableCorrelationNames()`	Are table correlation names supported?
`boolean`	`supportsTransactionIsolationLevel(int level)`	Does the database support the given transaction isolation level?
`boolean`	`supportsTransactions()`	Are transactions supported?
`boolean`	`supportsUnion()`	Is SQL UNION supported?
`boolean`	`supportsUnionAll()`	Is SQL UNION ALL supported?
`protected static java.lang.String`	`swapNull(java.lang.String s)`
`<T> T`	`unwrap(java.lang.Class<T> iface)`	Returns `this` if this class implements the interface.
`boolean`	`updatesAreDetected(int type)`	JDBC 2.0 Determine whether or not a visible row update can be detected by calling ResultSet.rowUpdated().
`boolean`	`usesLocalFilePerTable()`	Does the database use a file for each table?
`boolean`	`usesLocalFiles()`	Does the database store tables in a local file?

Methods inherited from class org.apache.derby.impl.jdbc.ConnectionChild
commitIfAutoCommit, commitIfNeeded, getCal, getConnectionSynchronization, getEmbedConnection, getLanguageConnectionContext, getLCC, handleException, needCommit, newSQLException, restoreContextStack, restoreIntrFlagIfSeen, setupContextStack

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.sql.DatabaseMetaData
supportsSharding

- Field Detail
  - ILLEGAL_UDT_TYPE
```
private static final int ILLEGAL_UDT_TYPE
```
    See Also:
    
    Constant Field Values
  - url
```
private final java.lang.String url
```
  - constantActionFactory
```
private GenericConstantActionFactory constantActionFactory
```
  - queryDescriptions
```
private static java.util.Properties queryDescriptions
```
    Cached query descriptions from metadata.properties.
  - queryDescriptions_net
```
private static java.util.Properties queryDescriptions_net
```
    Cached query descriptions from metadata_net.properties.
- Constructor Detail
  - EmbedDatabaseMetaData
```
public EmbedDatabaseMetaData(EmbedConnection connection,
                             java.lang.String url)
                      throws java.sql.SQLException
```
    Throws:
    
    java.sql.SQLException - on error
- Method Detail
  - getQueryDescriptions
```
private java.util.Properties getQueryDescriptions(boolean net)
```
    Return all queries found in either metadata.properties or metadata_net.properties.
    
    Parameters:
    
    net - if true, read metadata_net.properties; otherwise, read metadata.properties.
    
    Returns:
    
    a Properties value with the queries
  - PBloadQueryDescriptions
```
private void PBloadQueryDescriptions()
```
    Read the query descriptions from metadata.properties and metadata_net.properties. This method must be invoked from within a privileged block.
  - allProceduresAreCallable
```
public boolean allProceduresAreCallable()
```
    Can all the procedures returned by getProcedures be called by the current user?
    
    Specified by:
    
    allProceduresAreCallable in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - allTablesAreSelectable
```
public boolean allTablesAreSelectable()
```
    Can all the tables returned by getTable be SELECTed by the current user?
    
    Specified by:
    
    allTablesAreSelectable in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - getURL
```
public final java.lang.String getURL()
```
    What's the url for this database?
    
    Specified by:
    
    getURL in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the url or null if it can't be generated
  - getUserName
```
public java.lang.String getUserName()
```
    What's our user name as known to the database?
    
    Specified by:
    
    getUserName in interface java.sql.DatabaseMetaData
    
    Returns:
    
    our database user name
  - isReadOnly
```
public boolean isReadOnly()
```
    Is the database in read-only mode?
    
    Specified by:
    
    isReadOnly in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - nullsAreSortedHigh
```
public boolean nullsAreSortedHigh()
```
    Are NULL values sorted high?
    
    Specified by:
    
    nullsAreSortedHigh in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - nullsAreSortedLow
```
public boolean nullsAreSortedLow()
```
    Are NULL values sorted low?
    
    Specified by:
    
    nullsAreSortedLow in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - nullsAreSortedAtStart
```
public boolean nullsAreSortedAtStart()
```
    Are NULL values sorted at the start regardless of sort order?
    
    Specified by:
    
    nullsAreSortedAtStart in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - nullsAreSortedAtEnd
```
public boolean nullsAreSortedAtEnd()
```
    Are NULL values sorted at the end regardless of sort order?
    
    Specified by:
    
    nullsAreSortedAtEnd in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - getDatabaseProductName
```
public java.lang.String getDatabaseProductName()
```
    What's the name of this database product?
    
    Specified by:
    
    getDatabaseProductName in interface java.sql.DatabaseMetaData
    
    Returns:
    
    database product name
  - getDatabaseProductVersion
```
public java.lang.String getDatabaseProductVersion()
```
    What's the version of this database product?
    
    Specified by:
    
    getDatabaseProductVersion in interface java.sql.DatabaseMetaData
    
    Returns:
    
    database version
  - getDriverName
```
public java.lang.String getDriverName()
```
    What's the name of this JDBC driver?
    
    Specified by:
    
    getDriverName in interface java.sql.DatabaseMetaData
    
    Returns:
    
    JDBC driver name
  - getDriverVersion
```
public java.lang.String getDriverVersion()
```
    What's the version of this JDBC driver?
    
    Specified by:
    
    getDriverVersion in interface java.sql.DatabaseMetaData
    
    Returns:
    
    JDBC driver version
  - getDriverMajorVersion
```
public int getDriverMajorVersion()
```
    What's this JDBC driver's major version number?
    
    Specified by:
    
    getDriverMajorVersion in interface java.sql.DatabaseMetaData
    
    Returns:
    
    JDBC driver major version
  - getDriverMinorVersion
```
public int getDriverMinorVersion()
```
    What's this JDBC driver's minor version number?
    
    Specified by:
    
    getDriverMinorVersion in interface java.sql.DatabaseMetaData
    
    Returns:
    
    JDBC driver minor version number
  - usesLocalFiles
```
public boolean usesLocalFiles()
```
    Does the database store tables in a local file?
    
    Specified by:
    
    usesLocalFiles in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - usesLocalFilePerTable
```
public boolean usesLocalFilePerTable()
```
    Does the database use a file for each table?
    
    Specified by:
    
    usesLocalFilePerTable in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if the database uses a local file for each table
  - supportsMixedCaseIdentifiers
```
public boolean supportsMixedCaseIdentifiers()
```
    Does the database treat mixed case unquoted SQL identifiers as case sensitive and as a result store them in mixed case? A JDBC-Compliant driver will always return false.
    
    Specified by:
    
    supportsMixedCaseIdentifiers in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - storesUpperCaseIdentifiers
```
public boolean storesUpperCaseIdentifiers()
```
    Does the database treat mixed case unquoted SQL identifiers as case insensitive and store them in upper case?
    
    Specified by:
    
    storesUpperCaseIdentifiers in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - storesLowerCaseIdentifiers
```
public boolean storesLowerCaseIdentifiers()
```
    Does the database treat mixed case unquoted SQL identifiers as case insensitive and store them in lower case?
    
    Specified by:
    
    storesLowerCaseIdentifiers in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - storesMixedCaseIdentifiers
```
public boolean storesMixedCaseIdentifiers()
```
    Does the database treat mixed case unquoted SQL identifiers as case insensitive and store them in mixed case?
    
    Specified by:
    
    storesMixedCaseIdentifiers in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsMixedCaseQuotedIdentifiers
```
public boolean supportsMixedCaseQuotedIdentifiers()
```
    Does the database treat mixed case quoted SQL identifiers as case sensitive and as a result store them in mixed case? A JDBC-Compliant driver will always return true.
    
    Specified by:
    
    supportsMixedCaseQuotedIdentifiers in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - storesUpperCaseQuotedIdentifiers
```
public boolean storesUpperCaseQuotedIdentifiers()
```
    Does the database treat mixed case quoted SQL identifiers as case insensitive and store them in upper case?
    
    Specified by:
    
    storesUpperCaseQuotedIdentifiers in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - storesLowerCaseQuotedIdentifiers
```
public boolean storesLowerCaseQuotedIdentifiers()
```
    Does the database treat mixed case quoted SQL identifiers as case insensitive and store them in lower case?
    
    Specified by:
    
    storesLowerCaseQuotedIdentifiers in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - storesMixedCaseQuotedIdentifiers
```
public boolean storesMixedCaseQuotedIdentifiers()
```
    Does the database treat mixed case quoted SQL identifiers as case insensitive and store them in mixed case?
    
    Specified by:
    
    storesMixedCaseQuotedIdentifiers in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - getIdentifierQuoteString
```
public java.lang.String getIdentifierQuoteString()
```
    What's the string used to quote SQL identifiers? This returns a space " " if identifier quoting isn't supported. A JDBC-Compliant driver always uses a double quote character.
    
    Specified by:
    
    getIdentifierQuoteString in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the quoting string
  - getSQLKeywords
```
public java.lang.String getSQLKeywords()
```
    Get a comma separated list of all a database's SQL keywords that are NOT also SQL92 keywords. includes reserved and non-reserved keywords.
    
    Specified by:
    
    getSQLKeywords in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the list
  - getNumericFunctions
```
public java.lang.String getNumericFunctions()
```
    Get a comma separated list of JDBC escaped numeric functions. Must be a complete or sub set of functions in appendix C.1 of JDBC 3.0 specification (pp. 183).
    
    Specified by:
    
    getNumericFunctions in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the list
  - getStringFunctions
```
public java.lang.String getStringFunctions()
```
    Get a comma separated list of JDBC escaped string functions. Must be a complete or sub set of functions in appendix C.2 of JDBC 3.0 specification (pp. 184).
    
    Specified by:
    
    getStringFunctions in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the list
  - getSystemFunctions
```
public java.lang.String getSystemFunctions()
```
    Get a comma separated list of JDBC escaped system functions. Must be a complete or sub set of functions in appendix C.4 of JDBC 3.0 specification (pp. 185).
    
    Specified by:
    
    getSystemFunctions in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the list
  - getTimeDateFunctions
```
public java.lang.String getTimeDateFunctions()
```
    Get a comma separated list of JDBC escaped time date functions. Must be a complete or sub set of functions in appendix C.3 of JDBC 3.0 specification.
    
    Specified by:
    
    getTimeDateFunctions in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the list
  - getSearchStringEscape
```
public java.lang.String getSearchStringEscape()
```
    This is the string that can be used to escape '_' or '%' in the string pattern style catalog search parameters. we have no default escape value, so = is the end of the next line
    The '_' character represents any single character.
    The '%' character represents any sequence of zero or more characters.
    
    Specified by:
    
    getSearchStringEscape in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the string used to escape wildcard characters
  - getExtraNameCharacters
```
public java.lang.String getExtraNameCharacters()
```
    Get all the "extra" characters that can be used in unquoted identifier names (those beyond a-z, A-Z, 0-9 and _).
    
    Specified by:
    
    getExtraNameCharacters in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the string containing the extra characters
  - supportsAlterTableWithAddColumn
```
public boolean supportsAlterTableWithAddColumn()
```
    Is "ALTER TABLE" with add column supported?
    
    Specified by:
    
    supportsAlterTableWithAddColumn in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsAlterTableWithDropColumn
```
public boolean supportsAlterTableWithDropColumn()
```
    Is "ALTER TABLE" with drop column supported?
    
    Specified by:
    
    supportsAlterTableWithDropColumn in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsColumnAliasing
```
public boolean supportsColumnAliasing()
```
    Is column aliasing supported?
    If so, the SQL AS clause can be used to provide names for computed columns or to provide alias names for columns as required. A JDBC-Compliant driver always returns true.
    
    Specified by:
    
    supportsColumnAliasing in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - nullPlusNonNullIsNull
```
public boolean nullPlusNonNullIsNull()
```
    Are concatenations between NULL and non-NULL values NULL? A JDBC-Compliant driver always returns true.
    
    Specified by:
    
    nullPlusNonNullIsNull in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsConvert
```
public boolean supportsConvert()
```
    Is the CONVERT function between SQL types supported?
    
    Specified by:
    
    supportsConvert in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsConvert
```
public boolean supportsConvert(int fromType,
                               int toType)
```
    Is CONVERT between the given SQL types supported?
    
    Specified by:
    
    supportsConvert in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    fromType - the type to convert from
    
    toType - the type to convert to
    
    Returns:
    
    true if so
    
    See Also:
    
    Types
  - supportsTableCorrelationNames
```
public boolean supportsTableCorrelationNames()
```
    Are table correlation names supported? A JDBC-Compliant driver always returns true.
    
    Specified by:
    
    supportsTableCorrelationNames in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsDifferentTableCorrelationNames
```
public boolean supportsDifferentTableCorrelationNames()
```
    If table correlation names are supported, are they restricted to be different from the names of the tables?
    
    Specified by:
    
    supportsDifferentTableCorrelationNames in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsExpressionsInOrderBy
```
public boolean supportsExpressionsInOrderBy()
```
    Are expressions in "ORDER BY" lists supported?
    
    Specified by:
    
    supportsExpressionsInOrderBy in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsOrderByUnrelated
```
public boolean supportsOrderByUnrelated()
```
    Can an "ORDER BY" clause use columns not in the SELECT?
    
    Specified by:
    
    supportsOrderByUnrelated in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsGroupBy
```
public boolean supportsGroupBy()
```
    Is some form of "GROUP BY" clause supported?
    
    Specified by:
    
    supportsGroupBy in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsGroupByUnrelated
```
public boolean supportsGroupByUnrelated()
```
    Can a "GROUP BY" clause use columns not in the SELECT?
    
    Specified by:
    
    supportsGroupByUnrelated in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsGroupByBeyondSelect
```
public boolean supportsGroupByBeyondSelect()
```
    Can a "GROUP BY" clause add columns not in the SELECT provided it specifies all the columns in the SELECT?
    
    Specified by:
    
    supportsGroupByBeyondSelect in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsLikeEscapeClause
```
public boolean supportsLikeEscapeClause()
```
    Is the escape character in "LIKE" clauses supported? A JDBC-Compliant driver always returns true.
    
    Specified by:
    
    supportsLikeEscapeClause in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsMultipleResultSets
```
public boolean supportsMultipleResultSets()
```
    Are multiple ResultSets from a single execute supported?
    
    Specified by:
    
    supportsMultipleResultSets in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsMultipleTransactions
```
public boolean supportsMultipleTransactions()
```
    Can we have multiple transactions open at once (on different connections)?
    
    Specified by:
    
    supportsMultipleTransactions in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsNonNullableColumns
```
public boolean supportsNonNullableColumns()
```
    Can columns be defined as non-nullable? A JDBC-Compliant driver always returns true.
    
    Specified by:
    
    supportsNonNullableColumns in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsMinimumSQLGrammar
```
public boolean supportsMinimumSQLGrammar()
```
    Is the ODBC Minimum SQL grammar supported? All JDBC-Compliant drivers must return true.
    
    Specified by:
    
    supportsMinimumSQLGrammar in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsCoreSQLGrammar
```
public boolean supportsCoreSQLGrammar()
```
    Is the ODBC Core SQL grammar supported?
    
    Specified by:
    
    supportsCoreSQLGrammar in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsExtendedSQLGrammar
```
public boolean supportsExtendedSQLGrammar()
```
    Is the ODBC Extended SQL grammar supported?
    
    Specified by:
    
    supportsExtendedSQLGrammar in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsANSI92EntryLevelSQL
```
public boolean supportsANSI92EntryLevelSQL()
```
    Is the ANSI92 entry level SQL grammar supported? All JDBC-Compliant drivers must return true.
    
    Specified by:
    
    supportsANSI92EntryLevelSQL in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsANSI92IntermediateSQL
```
public boolean supportsANSI92IntermediateSQL()
```
    Is the ANSI92 intermediate SQL grammar supported?
    
    Specified by:
    
    supportsANSI92IntermediateSQL in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsANSI92FullSQL
```
public boolean supportsANSI92FullSQL()
```
    Is the ANSI92 full SQL grammar supported?
    
    Specified by:
    
    supportsANSI92FullSQL in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsIntegrityEnhancementFacility
```
public boolean supportsIntegrityEnhancementFacility()
```
    Is the SQL Integrity Enhancement Facility supported?
    
    Specified by:
    
    supportsIntegrityEnhancementFacility in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsOuterJoins
```
public boolean supportsOuterJoins()
```
    Is some form of outer join supported?
    
    Specified by:
    
    supportsOuterJoins in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsFullOuterJoins
```
public boolean supportsFullOuterJoins()
```
    Are full nested outer joins supported?
    
    Specified by:
    
    supportsFullOuterJoins in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsLimitedOuterJoins
```
public boolean supportsLimitedOuterJoins()
```
    Is there limited support for outer joins? (This will be true if supportFullOuterJoins is true.)
    
    Specified by:
    
    supportsLimitedOuterJoins in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - getSchemaTerm
```
public java.lang.String getSchemaTerm()
```
    What's the database vendor's preferred term for "schema"?
    
    Specified by:
    
    getSchemaTerm in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the vendor term
  - getProcedureTerm
```
public java.lang.String getProcedureTerm()
```
    What's the database vendor's preferred term for "procedure"?
    
    Specified by:
    
    getProcedureTerm in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the vendor term
  - getCatalogTerm
```
public java.lang.String getCatalogTerm()
```
    What's the database vendor's preferred term for "catalog"?
    
    Specified by:
    
    getCatalogTerm in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the vendor term
  - isCatalogAtStart
```
public boolean isCatalogAtStart()
```
    Does a catalog appear at the start of a qualified table name? (Otherwise it appears at the end)
    
    Specified by:
    
    isCatalogAtStart in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if it appears at the start
  - getCatalogSeparator
```
public java.lang.String getCatalogSeparator()
```
    What's the separator between catalog and table name?
    
    Specified by:
    
    getCatalogSeparator in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the separator string
  - supportsSchemasInDataManipulation
```
public boolean supportsSchemasInDataManipulation()
```
    Can a schema name be used in a data manipulation statement?
    
    Specified by:
    
    supportsSchemasInDataManipulation in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsSchemasInProcedureCalls
```
public boolean supportsSchemasInProcedureCalls()
```
    Can a schema name be used in a procedure call statement?
    
    Specified by:
    
    supportsSchemasInProcedureCalls in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsSchemasInTableDefinitions
```
public boolean supportsSchemasInTableDefinitions()
```
    Can a schema name be used in a table definition statement?
    
    Specified by:
    
    supportsSchemasInTableDefinitions in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsSchemasInIndexDefinitions
```
public boolean supportsSchemasInIndexDefinitions()
```
    Can a schema name be used in an index definition statement?
    
    Specified by:
    
    supportsSchemasInIndexDefinitions in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsSchemasInPrivilegeDefinitions
```
public boolean supportsSchemasInPrivilegeDefinitions()
```
    Can a schema name be used in a privilege definition statement?
    
    Specified by:
    
    supportsSchemasInPrivilegeDefinitions in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsCatalogsInDataManipulation
```
public boolean supportsCatalogsInDataManipulation()
```
    Can a catalog name be used in a data manipulation statement?
    
    Specified by:
    
    supportsCatalogsInDataManipulation in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsCatalogsInProcedureCalls
```
public boolean supportsCatalogsInProcedureCalls()
```
    Can a catalog name be used in a procedure call statement?
    
    Specified by:
    
    supportsCatalogsInProcedureCalls in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsCatalogsInTableDefinitions
```
public boolean supportsCatalogsInTableDefinitions()
```
    Can a catalog name be used in a table definition statement?
    
    Specified by:
    
    supportsCatalogsInTableDefinitions in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsCatalogsInIndexDefinitions
```
public boolean supportsCatalogsInIndexDefinitions()
```
    Can a catalog name be used in an index definition statement?
    
    Specified by:
    
    supportsCatalogsInIndexDefinitions in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsCatalogsInPrivilegeDefinitions
```
public boolean supportsCatalogsInPrivilegeDefinitions()
```
    Can a catalog name be used in a privilege definition statement?
    
    Specified by:
    
    supportsCatalogsInPrivilegeDefinitions in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsPositionedDelete
```
public boolean supportsPositionedDelete()
```
    Is positioned DELETE supported?
    
    Specified by:
    
    supportsPositionedDelete in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsPositionedUpdate
```
public boolean supportsPositionedUpdate()
```
    Is positioned UPDATE supported?
    
    Specified by:
    
    supportsPositionedUpdate in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsRefCursors
```
public boolean supportsRefCursors()
```
    Added in JDBC 4.2. Derby does not support the Types.REF_CURSOR type.
    
    Specified by:
    
    supportsRefCursors in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsSelectForUpdate
```
public boolean supportsSelectForUpdate()
```
    Is SELECT for UPDATE supported?
    
    Specified by:
    
    supportsSelectForUpdate in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsStoredProcedures
```
public boolean supportsStoredProcedures()
```
    Are stored procedure calls using the stored procedure escape syntax supported?
    
    Specified by:
    
    supportsStoredProcedures in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsSubqueriesInComparisons
```
public boolean supportsSubqueriesInComparisons()
```
    Are subqueries in comparison expressions supported? A JDBC-Compliant driver always returns true.
    
    Specified by:
    
    supportsSubqueriesInComparisons in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsSubqueriesInExists
```
public boolean supportsSubqueriesInExists()
```
    Are subqueries in 'exists' expressions supported? A JDBC-Compliant driver always returns true.
    
    Specified by:
    
    supportsSubqueriesInExists in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsSubqueriesInIns
```
public boolean supportsSubqueriesInIns()
```
    Are subqueries in 'in' statements supported? A JDBC-Compliant driver always returns true.
    
    Specified by:
    
    supportsSubqueriesInIns in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsSubqueriesInQuantifieds
```
public boolean supportsSubqueriesInQuantifieds()
```
    Are subqueries in quantified expressions supported? A JDBC-Compliant driver always returns true.
    
    Specified by:
    
    supportsSubqueriesInQuantifieds in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsCorrelatedSubqueries
```
public boolean supportsCorrelatedSubqueries()
```
    Are correlated subqueries supported? A JDBC-Compliant driver always returns true.
    
    Specified by:
    
    supportsCorrelatedSubqueries in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsUnion
```
public boolean supportsUnion()
```
    Is SQL UNION supported?
    
    Specified by:
    
    supportsUnion in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsUnionAll
```
public boolean supportsUnionAll()
```
    Is SQL UNION ALL supported?
    
    Specified by:
    
    supportsUnionAll in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsOpenCursorsAcrossCommit
```
public boolean supportsOpenCursorsAcrossCommit()
```
    Can cursors remain open across commits?
    
    Specified by:
    
    supportsOpenCursorsAcrossCommit in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if cursors always remain open; false if they might not remain open
  - supportsOpenCursorsAcrossRollback
```
public boolean supportsOpenCursorsAcrossRollback()
```
    Can cursors remain open across rollbacks?
    
    Specified by:
    
    supportsOpenCursorsAcrossRollback in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if cursors always remain open; false if they might not remain open
  - supportsOpenStatementsAcrossCommit
```
public boolean supportsOpenStatementsAcrossCommit()
```
    Can statements remain open across commits?
    
    Specified by:
    
    supportsOpenStatementsAcrossCommit in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if statements always remain open; false if they might not remain open
  - supportsOpenStatementsAcrossRollback
```
public boolean supportsOpenStatementsAcrossRollback()
```
    Can statements remain open across rollbacks?
    
    Specified by:
    
    supportsOpenStatementsAcrossRollback in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if statements always remain open; false if they might not remain open
  - getMaxBinaryLiteralLength
```
public int getMaxBinaryLiteralLength()
```
    How many hex characters can you have in an inline binary literal?
    
    Specified by:
    
    getMaxBinaryLiteralLength in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max literal length
  - getMaxCharLiteralLength
```
public int getMaxCharLiteralLength()
```
    What's the max length for a character literal?
    
    Specified by:
    
    getMaxCharLiteralLength in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max literal length
  - getMaxColumnNameLength
```
public int getMaxColumnNameLength()
```
    What's the limit on column name length?
    
    Specified by:
    
    getMaxColumnNameLength in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max literal length
  - getMaxColumnsInGroupBy
```
public int getMaxColumnsInGroupBy()
```
    What's the maximum number of columns in a "GROUP BY" clause?
    
    Specified by:
    
    getMaxColumnsInGroupBy in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max number of columns
  - getMaxColumnsInIndex
```
public int getMaxColumnsInIndex()
```
    What's the maximum number of columns allowed in an index?
    
    Specified by:
    
    getMaxColumnsInIndex in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max columns
  - getMaxColumnsInOrderBy
```
public int getMaxColumnsInOrderBy()
```
    What's the maximum number of columns in an "ORDER BY" clause?
    
    Specified by:
    
    getMaxColumnsInOrderBy in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max columns
  - getMaxColumnsInSelect
```
public int getMaxColumnsInSelect()
```
    What's the maximum number of columns in a "SELECT" list? we don't have a limit...
    
    Specified by:
    
    getMaxColumnsInSelect in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max columns
  - getMaxColumnsInTable
```
public int getMaxColumnsInTable()
```
    What's the maximum number of columns in a table?
    
    Specified by:
    
    getMaxColumnsInTable in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max columns
  - getMaxConnections
```
public int getMaxConnections()
```
    How many active connections can we have at a time to this database?
    
    Specified by:
    
    getMaxConnections in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max connections
  - getMaxCursorNameLength
```
public int getMaxCursorNameLength()
```
    What's the maximum cursor name length?
    
    Specified by:
    
    getMaxCursorNameLength in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max cursor name length in bytes
  - getMaxIndexLength
```
public int getMaxIndexLength()
```
    What's the maximum length of an index (in bytes)?
    
    Specified by:
    
    getMaxIndexLength in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max index length in bytes
  - getMaxLogicalLobSize
```
public long getMaxLogicalLobSize()
```
    Added in JDBC 4.2. What's the maximum length of Derby LOB? This is the maximum number of bytes in a LOB. We return the default value of 0, which means "unknown". The maximum size of a CLOB is a complicated because it depends on how many bytes are needed to encode its string value on disk.
    
    Specified by:
    
    getMaxLogicalLobSize in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max index length in bytes
  - getMaxSchemaNameLength
```
public int getMaxSchemaNameLength()
```
    What's the maximum length allowed for a schema name?
    
    Specified by:
    
    getMaxSchemaNameLength in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max name length in bytes
  - getMaxProcedureNameLength
```
public int getMaxProcedureNameLength()
```
    What's the maximum length of a procedure name?
    
    Specified by:
    
    getMaxProcedureNameLength in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max name length in bytes
  - getMaxCatalogNameLength
```
public int getMaxCatalogNameLength()
```
    What's the maximum length of a catalog name?
    
    Specified by:
    
    getMaxCatalogNameLength in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max name length in bytes
  - getMaxRowSize
```
public int getMaxRowSize()
```
    What's the maximum length of a single row?
    
    Specified by:
    
    getMaxRowSize in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max row size in bytes
  - doesMaxRowSizeIncludeBlobs
```
public boolean doesMaxRowSizeIncludeBlobs()
```
    Did getMaxRowSize() include LONGVARCHAR and LONGVARBINARY blobs?
    
    Specified by:
    
    doesMaxRowSizeIncludeBlobs in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - getMaxStatementLength
```
public int getMaxStatementLength()
```
    What's the maximum length of a SQL statement?
    
    Specified by:
    
    getMaxStatementLength in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max length in bytes
  - getMaxStatements
```
public int getMaxStatements()
```
    How many active statements can we have open at one time to this database?
    
    Specified by:
    
    getMaxStatements in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the maximum
  - getMaxTableNameLength
```
public int getMaxTableNameLength()
```
    What's the maximum length of a table name?
    
    Specified by:
    
    getMaxTableNameLength in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max name length in bytes
  - getMaxTablesInSelect
```
public int getMaxTablesInSelect()
```
    What's the maximum number of tables in a SELECT?
    
    Specified by:
    
    getMaxTablesInSelect in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the maximum
  - getMaxUserNameLength
```
public int getMaxUserNameLength()
```
    What's the maximum length of a user name?
    
    Specified by:
    
    getMaxUserNameLength in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max name length in bytes
  - getDefaultTransactionIsolation
```
public int getDefaultTransactionIsolation()
```
    What's the database's default transaction isolation level? The values are defined in java.sql.Connection.
    
    Specified by:
    
    getDefaultTransactionIsolation in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the default isolation level
    
    See Also:
    
    Connection
  - supportsTransactions
```
public boolean supportsTransactions()
```
    Are transactions supported? If not, commit is a noop and the isolation level is TRANSACTION_NONE.
    
    Specified by:
    
    supportsTransactions in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if transactions are supported
  - supportsTransactionIsolationLevel
```
public boolean supportsTransactionIsolationLevel(int level)
```
    Does the database support the given transaction isolation level? DatabaseMetaData.supportsTransactionIsolation() should return false for isolation levels that are not supported even if a higher level can be substituted.
    
    Specified by:
    
    supportsTransactionIsolationLevel in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    level - the values are defined in java.sql.Connection
    
    Returns:
    
    true if so
    
    See Also:
    
    Connection
  - supportsDataDefinitionAndDataManipulationTransactions
```
public boolean supportsDataDefinitionAndDataManipulationTransactions()
```
    Are both data definition and data manipulation statements within a transaction supported?
    
    Specified by:
    
    supportsDataDefinitionAndDataManipulationTransactions in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - supportsDataManipulationTransactionsOnly
```
public boolean supportsDataManipulationTransactionsOnly()
```
    Are only data manipulation statements within a transaction supported?
    
    Specified by:
    
    supportsDataManipulationTransactionsOnly in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - dataDefinitionCausesTransactionCommit
```
public boolean dataDefinitionCausesTransactionCommit()
```
    Does a data definition statement within a transaction force the transaction to commit?
    
    Specified by:
    
    dataDefinitionCausesTransactionCommit in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - dataDefinitionIgnoredInTransactions
```
public boolean dataDefinitionIgnoredInTransactions()
```
    Is a data definition statement within a transaction ignored?
    
    Specified by:
    
    dataDefinitionIgnoredInTransactions in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so
  - getProcedures
```
public java.sql.ResultSet getProcedures(java.lang.String catalog,
                                        java.lang.String schemaPattern,
                                        java.lang.String procedureNamePattern)
                                 throws java.sql.SQLException
```
    Get a description of stored procedures available in a catalog.
    Only procedure descriptions matching the schema and procedure name criteria are returned. They are ordered by PROCEDURE_SCHEM, and PROCEDURE_NAME.
    Each procedure description has the the following columns:
    
    PROCEDURE_CAT String => procedure catalog (may be null)
    PROCEDURE_SCHEM String => procedure schema (may be null)
    PROCEDURE_NAME String => procedure name
    reserved for future use
    reserved for future use
    reserved for future use
    REMARKS String => explanatory comment on the procedure
    PROCEDURE_TYPE short => kind of procedure:
    
    procedureResultUnknown - May return a result
    procedureNoResult - Does not return a result
    procedureReturnsResult - Returns a result
    
    SPECIFIC_NAME String => The name which uniquely identifies this procedure within its schema (since JDBC 4.0)
    Specified by:
    
    getProcedures in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schemaPattern - a schema name pattern; "" retrieves those without a schema
    
    procedureNamePattern - a procedure name pattern
    
    Returns:
    
    ResultSet - each row is a procedure description
    
    Throws:
    
    java.sql.SQLException - thrown on failure.
    
    See Also:
    
    getSearchStringEscape()
  - getProceduresForODBC
```
public java.sql.ResultSet getProceduresForODBC(java.lang.String catalog,
                                               java.lang.String schemaPattern,
                                               java.lang.String procedureNamePattern)
                                        throws java.sql.SQLException
```
    Get a description of stored procedures available in a catalog. Same as getProcedures() above, except that the result set will conform to ODBC specifications.
    
    Throws:
    
    java.sql.SQLException
  - getFunctions
```
public java.sql.ResultSet getFunctions(java.lang.String catalog,
                                       java.lang.String schemaPattern,
                                       java.lang.String functionNamePattern)
                                throws java.sql.SQLException
```
    Implements DatabaseMetaData.getFunctions() for an embedded database. Queries the database to get information about functions (procedures returning values). Executes the 'getFunctions' query from metadata.properties to obtain the ResultSet to return.
    Compatibility: This is a new method in the API which is only available with with Derby versions > 10.1 and JDK versions >= 1.6
    Upgrade: Since this is a new query it does not have an SPS, and will be available as soon as any database, new or old, is booted with the new version of Derby, (in soft and hard upgrade).
    
    Specified by:
    
    getFunctions in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - limit the search to functions in this catalog (not used)
    
    schemaPattern - limit the search to functions in schemas matching this pattern
    
    functionNamePattern - limit the search to functions matching this pattern
    
    Returns:
    
    a ResultSet with metadata information
    
    Throws:
    
    java.sql.SQLException - if any of the underlying jdbc methods fail
  - doGetProcs
```
private java.sql.ResultSet doGetProcs(java.lang.String catalog,
                                      java.lang.String schemaPattern,
                                      java.lang.String procedureNamePattern,
                                      java.lang.String queryName)
                               throws java.sql.SQLException
```
    Does the actual work for the getProcedures and getFunctions metadata calls. See getProcedures() method above for parameter descriptions.
    
    Parameters:
    
    queryName - Name of the query to execute; is used to determine whether the result set should conform to JDBC or ODBC specifications.
    
    Throws:
    
    java.sql.SQLException
  - getProcedureColumns
```
public java.sql.ResultSet getProcedureColumns(java.lang.String catalog,
                                              java.lang.String schemaPattern,
                                              java.lang.String procedureNamePattern,
                                              java.lang.String columnNamePattern)
                                       throws java.sql.SQLException
```
    Get a description of a catalog's stored procedure parameters and result columns.
    Only descriptions matching the schema, procedure and parameter name criteria are returned. They are ordered by PROCEDURE_SCHEM and PROCEDURE_NAME. Within this, the return value, if any, is first. Next are the parameter descriptions in call order. The column descriptions follow in column number order.
    Each row in the ResultSet is a parameter description or column description with the following fields:
    
    PROCEDURE_CAT String => procedure catalog (may be null)
    PROCEDURE_SCHEM String => procedure schema (may be null)
    PROCEDURE_NAME String => procedure name
    COLUMN_NAME String => column/parameter name
    COLUMN_TYPE Short => kind of column/parameter:
    
    procedureColumnUnknown - nobody knows
    procedureColumnIn - IN parameter
    procedureColumnInOut - INOUT parameter
    procedureColumnOut - OUT parameter
    procedureColumnReturn - procedure return value
    procedureColumnResult - result column in ResultSet
    
    DATA_TYPE int => SQL type from java.sql.Types
    TYPE_NAME String => SQL type name
    PRECISION int => precision
    LENGTH int => length in bytes of data
    SCALE short => scale
    RADIX short => radix
    NULLABLE short => can it contain NULL?
    
    procedureNoNulls - does not allow NULL values
    procedureNullable - allows NULL values
    procedureNullableUnknown - nullability unknown
    
    REMARKS String => comment describing parameter/column
    COLUMN_DEF String
    SQL_DATA_TYPE int
    SQL_DATETIME_SUB int
    CHAR_OCTET_LENGTH int
    ORDINAL_POSITION int
    IS_NULLABLE String
    SPECIFIC_NAME String
    
    Note: Some databases may not return the column descriptions for a procedure. Additional columns beyond SPECIFIC_NAME can be defined by the database.
    Specified by:
    
    getProcedureColumns in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schemaPattern - a schema name pattern; "" retrieves those without a schema
    
    procedureNamePattern - a procedure name pattern
    
    columnNamePattern - a column name pattern
    
    Returns:
    
    ResultSet - each row is a stored procedure parameter or column description
    
    Throws:
    
    java.sql.SQLException - thrown on failure.
    
    See Also:
    
    getSearchStringEscape()
  - getProcedureColumnsForODBC
```
public java.sql.ResultSet getProcedureColumnsForODBC(java.lang.String catalog,
                                                     java.lang.String schemaPattern,
                                                     java.lang.String procedureNamePattern,
                                                     java.lang.String columnNamePattern)
                                              throws java.sql.SQLException
```
    Get a description of a catalog's stored procedure parameters and result columns. Same as getProcedureColumns() above, except that the result set will conform to ODBC specifications.
    
    Throws:
    
    java.sql.SQLException
  - getFunctionColumns
```
public java.sql.ResultSet getFunctionColumns(java.lang.String catalog,
                                             java.lang.String schemaPattern,
                                             java.lang.String functionNamePattern,
                                             java.lang.String parameterNamePattern)
                                      throws java.sql.SQLException
```
    Implements DatabaseMetaData.getFunctionColumns() for an embedded database. Queries the database to get information about function parameters. Executes the 'getFunctionColumns' query from metadata.properties to obtain the ResultSet.
    Compatibility: This is a new method in the API which is only available with with Derby versions > 10.1 and JDK versions >= 1.6
    Upgrade: Since this is a new query it does not have an SPS, and will be available as soon as any database, new or old, is booted with the new version of Derby, (in soft and hard upgrade).
    
    Specified by:
    
    getFunctionColumns in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - limit the search to functions in this catalog (not used)
    
    schemaPattern - limit the search to functions in schemas matching this pattern
    
    functionNamePattern - limit the search to functions matching this pattern
    
    parameterNamePattern - limit the search parameters matching this pattern
    
    Returns:
    
    a ResultSet with metadata information
    
    Throws:
    
    java.sql.SQLException - if a database error occurs
  - doGetProcCols
```
private java.sql.ResultSet doGetProcCols(java.lang.String catalog,
                                         java.lang.String schemaPattern,
                                         java.lang.String procedureNamePattern,
                                         java.lang.String columnNamePattern,
                                         java.lang.String queryName)
                                  throws java.sql.SQLException
```
    Does the actual work for the getProcedureColumns metadata calls. See getProcedureColumns() method above for parameter descriptions.
    
    Parameters:
    
    queryName - Name of the query to execute; is used to determine whether the result set should conform to JDBC or ODBC specifications.
    
    Throws:
    
    java.sql.SQLException
  - getTables
```
public java.sql.ResultSet getTables(java.lang.String catalog,
                                    java.lang.String schemaPattern,
                                    java.lang.String tableNamePattern,
                                    java.lang.String[] types)
                             throws java.sql.SQLException
```
    Get a description of tables available in a catalog.
    Only table descriptions matching the catalog, schema, table name and type criteria are returned. They are ordered by TABLE_TYPE, TABLE_SCHEM and TABLE_NAME.
    Each table description has the following columns:
    
    TABLE_CAT String => table catalog (may be null)
    TABLE_SCHEM String => table schema (may be null)
    TABLE_NAME String => table name
    TABLE_TYPE String => table type. Typical types are "TABLE", "VIEW", "SYSTEM TABLE", "GLOBAL TEMPORARY", "LOCAL TEMPORARY", "ALIAS", "SYNONYM".
    REMARKS String => explanatory comment on the table
    TYPE_CAT String => the types catalog (may be null)
    TYPE_SCHEM String => the types schema (may be null)
    TYPE_NAME String => type name (may be null)
    SELF_REFERENCING_COL_NAME String => name of the designated "identifier" column of a typed table (may be null)
    REF_GENERATION String => specifies how values in SELF_REFERENCING_COL_NAME are created. Values are "SYSTEM", "USER", "DERIVED". (may be null)
    
    Note: Some databases may not return information for all tables.
    Specified by:
    
    getTables in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schemaPattern - a schema name pattern; "" retrieves those without a schema
    
    tableNamePattern - a table name pattern
    
    types - a list of table types to include; null returns all types
    
    Returns:
    
    ResultSet - each row is a table description
    
    Throws:
    
    java.sql.SQLException - thrown on failure.
    
    See Also:
    
    getSearchStringEscape()
  - getSchemas
```
public java.sql.ResultSet getSchemas()
                              throws java.sql.SQLException
```
    Get the schema names available in this database. The results are ordered by schema name.
    The schema columns are:
    
    TABLE_SCHEM String => schema name
    
    TABLE_CATALOG String => catalog name (may be null)
    Specified by:
    
    getSchemas in interface java.sql.DatabaseMetaData
    
    Returns:
    
    ResultSet - each row is a schema description
    
    Throws:
    
    java.sql.SQLException - thrown on failure.
  - getCatalogs
```
public java.sql.ResultSet getCatalogs()
                               throws java.sql.SQLException
```
    Get the catalog names available in this database. The results are ordered by catalog name.
    The catalog column is:
    
    TABLE_CAT String => catalog name
    Specified by:
    
    getCatalogs in interface java.sql.DatabaseMetaData
    
    Returns:
    
    ResultSet - each row has a single String column that is a catalog name
    
    Throws:
    
    java.sql.SQLException - thrown on failure.
  - getTableTypes
```
public java.sql.ResultSet getTableTypes()
                                 throws java.sql.SQLException
```
    Get the table types available in this database. The results are ordered by table type.
    The table type is:
    
    TABLE_TYPE String => table type. Typical types are "TABLE", "VIEW", "SYSTEM TABLE", "GLOBAL TEMPORARY", "LOCAL TEMPORARY", "ALIAS", "SYNONYM".
    Specified by:
    
    getTableTypes in interface java.sql.DatabaseMetaData
    
    Returns:
    
    ResultSet - each row has a single String column that is a table type
    
    Throws:
    
    java.sql.SQLException - thrown on failure.
  - getColumns
```
public java.sql.ResultSet getColumns(java.lang.String catalog,
                                     java.lang.String schemaPattern,
                                     java.lang.String tableNamePattern,
                                     java.lang.String columnNamePattern)
                              throws java.sql.SQLException
```
    Get a description of table columns available in a catalog.
    Only column descriptions matching the catalog, schema, table and column name criteria are returned. They are ordered by TABLE_SCHEM, TABLE_NAME and ORDINAL_POSITION.
    Each column description has the following columns:
    
    TABLE_CAT String => table catalog (may be null)
    TABLE_SCHEM String => table schema (may be null)
    TABLE_NAME String => table name
    COLUMN_NAME String => column name
    DATA_TYPE int => SQL type from java.sql.Types
    TYPE_NAME String => Data source dependent type name
    COLUMN_SIZE int => column size. For char or date types this is the maximum number of characters, for numeric or decimal types this is precision.
    BUFFER_LENGTH is not used.
    DECIMAL_DIGITS int => the number of fractional digits
    NUM_PREC_RADIX int => Radix (typically either 10 or 2)
    NULLABLE int => is NULL allowed?
    
    columnNoNulls - might not allow NULL values
    columnNullable - definitely allows NULL values
    columnNullableUnknown - nullability unknown
    
    REMARKS String => comment describing column (may be null)
    COLUMN_DEF String => default value (may be null)
    SQL_DATA_TYPE int => unused
    SQL_DATETIME_SUB int => unused
    CHAR_OCTET_LENGTH int => for char types the maximum number of bytes in the column
    ORDINAL_POSITION int => index of column in table (starting at 1)
    IS_NULLABLE String => "NO" means column definitely does not allow NULL values; "YES" means the column might allow NULL values. An empty string means nobody knows.
    SCOPE_CATALOG String => catalog of table that is the scope of a reference attribute (null if DATA_TYPE isn't REF)
    SCOPE_SCHEMA String => schema of table that is the scope of a reference attribute (null if the DATA_TYPE isn't REF)
    SCOPE_TABLE String => table name that this the scope of a reference attribure (null if the DATA_TYPE isn't REF)
    SOURCE_DATA_TYPE short => source type of a distinct type or user-generated Ref type, SQL type from java.sql.Types (null if DATA_TYPE isn't DISTINCT or user-generated REF)
    IS_AUTOINCREMENT String => Indicates whether this column is auto incremented
    
    YES --- if the column is auto incremented
    NO --- if the column is not auto incremented
    empty string --- if it cannot be determined whether the column is auto incremented parameter is unknown
    
    SCOPE_CATLOG A redundant copy of SCOPE_CATALOG. The name of this column is deliberately mis-spelled in order to support a typo in the javadoc for DatabaseMetaData.getColumns() which was corrected by JDBC 4.1.
    Specified by:
    
    getColumns in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schemaPattern - a schema name pattern; "" retrieves those without a schema
    
    tableNamePattern - a table name pattern
    
    columnNamePattern - a column name pattern
    
    Returns:
    
    ResultSet - each row is a column description
    
    Throws:
    
    java.sql.SQLException - thrown on failure.
    
    See Also:
    
    getSearchStringEscape()
  - getColumnsForODBC
```
public java.sql.ResultSet getColumnsForODBC(java.lang.String catalog,
                                            java.lang.String schemaPattern,
                                            java.lang.String tableNamePattern,
                                            java.lang.String columnNamePattern)
                                     throws java.sql.SQLException
```
    Get a description of table columns available in a catalog. Same as getColumns() above, except that the result set will conform to ODBC specifications.
    
    Throws:
    
    java.sql.SQLException
  - doGetCols
```
private java.sql.ResultSet doGetCols(java.lang.String catalog,
                                     java.lang.String schemaPattern,
                                     java.lang.String tableNamePattern,
                                     java.lang.String columnNamePattern,
                                     java.lang.String queryName)
                              throws java.sql.SQLException
```
    Does the actual work for the getColumns metadata calls. See getColumns() method above for parameter descriptions.
    
    Parameters:
    
    queryName - Name of the query to execute; is used to determine whether the result set should conform to JDBC or ODBC specifications.
    
    Throws:
    
    java.sql.SQLException
  - getColumnPrivileges
```
public java.sql.ResultSet getColumnPrivileges(java.lang.String catalog,
                                              java.lang.String schema,
                                              java.lang.String table,
                                              java.lang.String columnNamePattern)
                                       throws java.sql.SQLException
```
    Get a description of the access rights for a table's columns.
    Only privileges matching the column name criteria are returned. They are ordered by COLUMN_NAME and PRIVILEGE.
    Each privilige description has the following columns:
    
    TABLE_CAT String => table catalog (may be null)
    TABLE_SCHEM String => table schema (may be null)
    TABLE_NAME String => table name
    COLUMN_NAME String => column name
    GRANTOR => grantor of access (may be null)
    GRANTEE String => grantee of access
    PRIVILEGE String => name of access (SELECT, INSERT, UPDATE, REFRENCES, ...)
    IS_GRANTABLE String => "YES" if grantee is permitted to grant to others; "NO" if not; null if unknown
    Specified by:
    
    getColumnPrivileges in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schema - a schema name; "" retrieves those without a schema
    
    table - a table name
    
    columnNamePattern - a column name pattern
    
    Returns:
    
    ResultSet - each row is a column privilege description
    
    Throws:
    
    java.sql.SQLException - thrown on failure.
    
    See Also:
    
    getSearchStringEscape()
  - getTablePrivileges
```
public java.sql.ResultSet getTablePrivileges(java.lang.String catalog,
                                             java.lang.String schemaPattern,
                                             java.lang.String tableNamePattern)
                                      throws java.sql.SQLException
```
    Get a description of the access rights for each table available in a catalog. Note that a table privilege applies to one or more columns in the table. It would be wrong to assume that this priviledge applies to all columns (this may be true for some systems but is not true for all.)
    Only privileges matching the schema and table name criteria are returned. They are ordered by TABLE_SCHEM, TABLE_NAME, and PRIVILEGE.
    Each privilige description has the following columns:
    
    TABLE_CAT String => table catalog (may be null)
    TABLE_SCHEM String => table schema (may be null)
    TABLE_NAME String => table name
    GRANTOR => grantor of access (may be null)
    GRANTEE String => grantee of access
    PRIVILEGE String => name of access (SELECT, INSERT, UPDATE, REFRENCES, ...)
    IS_GRANTABLE String => "YES" if grantee is permitted to grant to others; "NO" if not; null if unknown
    Specified by:
    
    getTablePrivileges in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schemaPattern - a schema name pattern; "" retrieves those without a schema
    
    tableNamePattern - a table name pattern
    
    Returns:
    
    ResultSet - each row is a table privilege description
    
    Throws:
    
    java.sql.SQLException - thrown on failure.
    
    See Also:
    
    getSearchStringEscape()
  - getBestRowIdentifier
```
public java.sql.ResultSet getBestRowIdentifier(java.lang.String catalogPattern,
                                               java.lang.String schemaPattern,
                                               java.lang.String table,
                                               int scope,
                                               boolean nullable)
                                        throws java.sql.SQLException
```
    Get a description of a table's optimal set of columns that uniquely identifies a row. They are ordered by SCOPE.
    Each column description has the following columns:
    
    SCOPE short => actual scope of result
    
    bestRowTemporary - very temporary, while using row
    bestRowTransaction - valid for remainder of current transaction
    bestRowSession - valid for remainder of current session
    
    COLUMN_NAME String => column name
    DATA_TYPE int => SQL data type from java.sql.Types
    TYPE_NAME String => Data source dependent type name
    COLUMN_SIZE int => precision
    BUFFER_LENGTH int => not used
    DECIMAL_DIGITS short => scale
    PSEUDO_COLUMN short => is this a pseudo column like an Oracle ROWID
    
    bestRowUnknown - may or may not be pseudo column
    bestRowNotPseudo - is NOT a pseudo column
    bestRowPseudo - is a pseudo column
    Specified by:
    
    getBestRowIdentifier in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalogPattern - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schemaPattern - a schema name; "" retrieves those without a schema
    
    table - a table name
    
    scope - the scope of interest; use same values as SCOPE
    
    nullable - include columns that are nullable?
    
    Returns:
    
    ResultSet - each row is a column description
    
    Throws:
    
    java.sql.SQLException - thrown on failure.
  - getBestRowIdentifierForODBC
```
public java.sql.ResultSet getBestRowIdentifierForODBC(java.lang.String catalogPattern,
                                                      java.lang.String schemaPattern,
                                                      java.lang.String table,
                                                      int scope,
                                                      boolean nullable)
                                               throws java.sql.SQLException
```
    Get a description of a table's optimal set of columns that uniquely identifies a row. They are ordered by SCOPE. Same as getBestRowIdentifier() above, except that the result set will conform to ODBC specifications.
    
    Throws:
    
    java.sql.SQLException
  - doGetBestRowId
```
private java.sql.ResultSet doGetBestRowId(java.lang.String catalogPattern,
                                          java.lang.String schemaPattern,
                                          java.lang.String table,
                                          int scope,
                                          boolean nullable,
                                          java.lang.String queryPrefix)
                                   throws java.sql.SQLException
```
    Does the actual work for the getBestRowIdentifier metadata calls. See getBestRowIdentifier() method above for parameter descriptions.
    
    Parameters:
    
    queryPrefix - Prefix to be appended to the names of the queries used in this method. This is used to determine whether the result set should conform to JDBC or ODBC specifications.
    
    Throws:
    
    java.sql.SQLException
  - getVersionColumns
```
public java.sql.ResultSet getVersionColumns(java.lang.String catalog,
                                            java.lang.String schema,
                                            java.lang.String table)
                                     throws java.sql.SQLException
```
    Get a description of a table's columns that are automatically updated when any value in a row is updated. They are unordered.
    Each column description has the following columns:
    
    SCOPE short => is not used
    COLUMN_NAME String => column name
    DATA_TYPE int => SQL data type from java.sql.Types
    TYPE_NAME String => Data source dependent type name
    COLUMN_SIZE int => precision
    BUFFER_LENGTH int => length of column value in bytes
    DECIMAL_DIGITS short => scale
    PSEUDO_COLUMN short => is this a pseudo column like an Oracle ROWID
    
    versionColumnUnknown - may or may not be pseudo column
    versionColumnNotPseudo - is NOT a pseudo column
    versionColumnPseudo - is a pseudo column
    Specified by:
    
    getVersionColumns in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schema - a schema name; "" retrieves those without a schema
    
    table - a table name
    
    Returns:
    
    ResultSet - each row is a column description
    
    Throws:
    
    java.sql.SQLException - thrown on failure.
  - getVersionColumnsForODBC
```
public java.sql.ResultSet getVersionColumnsForODBC(java.lang.String catalog,
                                                   java.lang.String schema,
                                                   java.lang.String table)
                                            throws java.sql.SQLException
```
    Get a description of a table's columns that are automatically updated when any value in a row is updated. They are unordered. Same as getVersionColumns() above, except that the result set will conform to ODBC specifications.
    
    Throws:
    
    java.sql.SQLException
  - doGetVersionCols
```
private java.sql.ResultSet doGetVersionCols(java.lang.String catalog,
                                            java.lang.String schema,
                                            java.lang.String table,
                                            java.lang.String queryName)
                                     throws java.sql.SQLException
```
    Does the actual work for the getVersionColumns metadata calls. See getVersionColumns() method above for parameter descriptions.
    
    Parameters:
    
    queryName - Name of the query to execute; is used to determine whether the result set should conform to JDBC or ODBC specifications.
    
    Throws:
    
    java.sql.SQLException
  - notInSoftUpgradeMode
```
private boolean notInSoftUpgradeMode()
                              throws java.sql.SQLException
```
    check if the dictionary is at the same version as the engine. If not, then that means stored versions of the JDBC database metadata queries may not be compatible with this version of the software. This can happen if we are in soft upgrade mode. Since in soft upgrade mode, we can't change these stored metadata queries in a backward incompatible way, engine needs to read the metadata sql from metadata.properties or metadata_net.properties file rather than rely on system tables.
    
    Returns:
    
    true if we are not in soft upgrade mode
    
    Throws:
    
    java.sql.SQLException
  - getPrimaryKeys
```
public java.sql.ResultSet getPrimaryKeys(java.lang.String catalog,
                                         java.lang.String schema,
                                         java.lang.String table)
                                  throws java.sql.SQLException
```
    Get a description of a table's primary key columns. They are ordered by COLUMN_NAME.
    Each primary key column description has the following columns:
    
    TABLE_CAT String => table catalog (may be null)
    TABLE_SCHEM String => table schema (may be null)
    TABLE_NAME String => table name
    COLUMN_NAME String => column name
    KEY_SEQ short => sequence number within primary key
    PK_NAME String => primary key name (may be null)
    Specified by:
    
    getPrimaryKeys in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schema - a schema name pattern; "" retrieves those without a schema
    
    table - a table name
    
    Returns:
    
    ResultSet - each row is a primary key column description
    
    Throws:
    
    java.sql.SQLException - thrown on failure.
  - getImportedKeys
```
public java.sql.ResultSet getImportedKeys(java.lang.String catalog,
                                          java.lang.String schema,
                                          java.lang.String table)
                                   throws java.sql.SQLException
```
    Get a description of the primary key columns that are referenced by a table's foreign key columns (the primary keys imported by a table). They are ordered by PKTABLE_CAT, PKTABLE_SCHEM, PKTABLE_NAME, and KEY_SEQ.
    Each primary key column description has the following columns:
    
    PKTABLE_CAT String => primary key table catalog being imported (may be null)
    PKTABLE_SCHEM String => primary key table schema being imported (may be null)
    PKTABLE_NAME String => primary key table name being imported
    PKCOLUMN_NAME String => primary key column name being imported
    FKTABLE_CAT String => foreign key table catalog (may be null)
    FKTABLE_SCHEM String => foreign key table schema (may be null)
    FKTABLE_NAME String => foreign key table name
    FKCOLUMN_NAME String => foreign key column name
    KEY_SEQ short => sequence number within foreign key
    UPDATE_RULE short => What happens to foreign key when primary is updated:
    
    importedNoAction - do not allow update of primary key if it has been imported
    importedKeyCascade - change imported key to agree with primary key update
    importedKeySetNull - change imported key to NULL if its primary key has been updated
    importedKeySetDefault - change imported key to default values if its primary key has been updated
    importedKeyRestrict - same as importedKeyNoAction (for ODBC 2.x compatibility)
    
    DELETE_RULE short => What happens to the foreign key when primary is deleted.
    
    importedKeyNoAction - do not allow delete of primary key if it has been imported
    importedKeyCascade - delete rows that import a deleted key
    importedKeySetNull - change imported key to NULL if its primary key has been deleted
    importedKeyRestrict - same as importedKeyNoAction (for ODBC 2.x compatibility)
    importedKeySetDefault - change imported key to default if its primary key has been deleted
    
    FK_NAME String => foreign key name (may be null)
    PK_NAME String => primary key name (may be null)
    DEFERRABILITY short => can the evaluation of foreign key constraints be deferred until commit
    
    importedKeyInitiallyDeferred - see SQL92 for definition
    importedKeyInitiallyImmediate - see SQL92 for definition
    importedKeyNotDeferrable - see SQL92 for definition
    Specified by:
    
    getImportedKeys in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schema - a schema name pattern; "" retrieves those without a schema
    
    table - a table name
    
    Returns:
    
    ResultSet - each row is a primary key column description
    
    Throws:
    
    java.sql.SQLException - thrown on failure.
    
    See Also:
    
    getExportedKeys(java.lang.String, java.lang.String, java.lang.String)
  - getExportedKeys
```
public java.sql.ResultSet getExportedKeys(java.lang.String catalog,
                                          java.lang.String schema,
                                          java.lang.String table)
                                   throws java.sql.SQLException
```
    Get a description of the foreign key columns that reference a table's primary key columns (the foreign keys exported by a table). They are ordered by FKTABLE_CAT, FKTABLE_SCHEM, FKTABLE_NAME, and KEY_SEQ.
    Each foreign key column description has the following columns:
    
    PKTABLE_CAT String => primary key table catalog (may be null)
    PKTABLE_SCHEM String => primary key table schema (may be null)
    PKTABLE_NAME String => primary key table name
    PKCOLUMN_NAME String => primary key column name
    FKTABLE_CAT String => foreign key table catalog (may be null) being exported (may be null)
    FKTABLE_SCHEM String => foreign key table schema (may be null) being exported (may be null)
    FKTABLE_NAME String => foreign key table name being exported
    FKCOLUMN_NAME String => foreign key column name being exported
    KEY_SEQ short => sequence number within foreign key
    UPDATE_RULE short => What happens to foreign key when primary is updated:
    
    importedNoAction - do not allow update of primary key if it has been imported
    importedKeyCascade - change imported key to agree with primary key update
    importedKeySetNull - change imported key to NULL if its primary key has been updated
    importedKeySetDefault - change imported key to default values if its primary key has been updated
    importedKeyRestrict - same as importedKeyNoAction (for ODBC 2.x compatibility)
    
    DELETE_RULE short => What happens to the foreign key when primary is deleted.
    
    importedKeyNoAction - do not allow delete of primary key if it has been imported
    importedKeyCascade - delete rows that import a deleted key
    importedKeySetNull - change imported key to NULL if its primary key has been deleted
    importedKeyRestrict - same as importedKeyNoAction (for ODBC 2.x compatibility)
    importedKeySetDefault - change imported key to default if its primary key has been deleted
    
    FK_NAME String => foreign key name (may be null)
    PK_NAME String => primary key name (may be null)
    DEFERRABILITY short => can the evaluation of foreign key constraints be deferred until commit
    
    importedKeyInitiallyDeferred - see SQL92 for definition
    importedKeyInitiallyImmediate - see SQL92 for definition
    importedKeyNotDeferrable - see SQL92 for definition
    Specified by:
    
    getExportedKeys in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schema - a schema name pattern; "" retrieves those without a schema
    
    table - a table name
    
    Returns:
    
    ResultSet - each row is a foreign key column description
    
    Throws:
    
    java.sql.SQLException - thrown on failure.
    
    See Also:
    
    getImportedKeys(java.lang.String, java.lang.String, java.lang.String)
  - getCrossReference
```
public java.sql.ResultSet getCrossReference(java.lang.String primaryCatalog,
                                            java.lang.String primarySchema,
                                            java.lang.String primaryTable,
                                            java.lang.String foreignCatalog,
                                            java.lang.String foreignSchema,
                                            java.lang.String foreignTable)
                                     throws java.sql.SQLException
```
    Get a description of the foreign key columns in the foreign key table that reference the primary key columns of the primary key table (describe how one table imports another's key.) This should normally return a single foreign key/primary key pair (most tables only import a foreign key from a table once.) They are ordered by FKTABLE_CAT, FKTABLE_SCHEM, FKTABLE_NAME, and KEY_SEQ.
    Each foreign key column description has the following columns:
    
    PKTABLE_CAT String => primary key table catalog (may be null)
    PKTABLE_SCHEM String => primary key table schema (may be null)
    PKTABLE_NAME String => primary key table name
    PKCOLUMN_NAME String => primary key column name
    FKTABLE_CAT String => foreign key table catalog (may be null) being exported (may be null)
    FKTABLE_SCHEM String => foreign key table schema (may be null) being exported (may be null)
    FKTABLE_NAME String => foreign key table name being exported
    FKCOLUMN_NAME String => foreign key column name being exported
    KEY_SEQ short => sequence number within foreign key
    UPDATE_RULE short => What happens to foreign key when primary is updated:
    
    importedNoAction - do not allow update of primary key if it has been imported
    importedKeyCascade - change imported key to agree with primary key update
    importedKeySetNull - change imported key to NULL if its primary key has been updated
    importedKeySetDefault - change imported key to default values if its primary key has been updated
    importedKeyRestrict - same as importedKeyNoAction (for ODBC 2.x compatibility)
    
    DELETE_RULE short => What happens to the foreign key when primary is deleted.
    
    importedKeyNoAction - do not allow delete of primary key if it has been imported
    importedKeyCascade - delete rows that import a deleted key
    importedKeySetNull - change imported key to NULL if its primary key has been deleted
    importedKeyRestrict - same as importedKeyNoAction (for ODBC 2.x compatibility)
    importedKeySetDefault - change imported key to default if its primary key has been deleted
    
    FK_NAME String => foreign key name (may be null)
    PK_NAME String => primary key name (may be null)
    DEFERRABILITY short => can the evaluation of foreign key constraints be deferred until commit
    
    importedKeyInitiallyDeferred - see SQL92 for definition
    importedKeyInitiallyImmediate - see SQL92 for definition
    importedKeyNotDeferrable - see SQL92 for definition
    Specified by:
    
    getCrossReference in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    primaryCatalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    primarySchema - a schema name pattern; "" retrieves those without a schema
    
    primaryTable - the table name that exports the key
    
    foreignCatalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    foreignSchema - a schema name pattern; "" retrieves those without a schema
    
    foreignTable - the table name that imports the key
    
    Returns:
    
    ResultSet - each row is a foreign key column description
    
    Throws:
    
    java.sql.SQLException - thrown on failure.
    
    See Also:
    
    getImportedKeys(java.lang.String, java.lang.String, java.lang.String)
  - getCrossReferenceForODBC
```
public java.sql.ResultSet getCrossReferenceForODBC(java.lang.String primaryCatalog,
                                                   java.lang.String primarySchema,
                                                   java.lang.String primaryTable,
                                                   java.lang.String foreignCatalog,
                                                   java.lang.String foreignSchema,
                                                   java.lang.String foreignTable)
                                            throws java.sql.SQLException
```
    In contrast to the JDBC version of getCrossReference, this method allows null values for table names.
    
    Throws:
    
    java.sql.SQLException
  - getTypeInfo
```
public java.sql.ResultSet getTypeInfo()
                               throws java.sql.SQLException
```
    Get a description of all the standard SQL types supported by this database. They are ordered by DATA_TYPE and then by how closely the data type maps to the corresponding JDBC SQL type.
    Each type description has the following columns:
    
    TYPE_NAME String => Type name
    DATA_TYPE int => SQL data type from java.sql.Types
    PRECISION int => maximum precision
    LITERAL_PREFIX String => prefix used to quote a literal (may be null)
    LITERAL_SUFFIX String => suffix used to quote a literal (may be null)
    CREATE_PARAMS String => parameters used in creating the type (may be null)
    NULLABLE short => can you use NULL for this type?
    
    typeNoNulls - does not allow NULL values
    typeNullable - allows NULL values
    typeNullableUnknown - nullability unknown
    
    CASE_SENSITIVE boolean=> is it case sensitive?
    SEARCHABLE short => can you use "WHERE" based on this type:
    
    typePredNone - No support
    typePredChar - Only supported with WHERE .. LIKE
    typePredBasic - Supported except for WHERE .. LIKE
    typeSearchable - Supported for all WHERE ..
    
    UNSIGNED_ATTRIBUTE boolean => is it unsigned?
    FIXED_PREC_SCALE boolean => can it be a money value?
    AUTO_INCREMENT boolean => can it be used for an auto-increment value?
    LOCAL_TYPE_NAME String => localized version of type name (may be null)
    MINIMUM_SCALE short => minimum scale supported
    MAXIMUM_SCALE short => maximum scale supported
    SQL_DATA_TYPE int => unused
    SQL_DATETIME_SUB int => unused
    NUM_PREC_RADIX int => usually 2 or 10
    Specified by:
    
    getTypeInfo in interface java.sql.DatabaseMetaData
    
    Returns:
    
    ResultSet - each row is a SQL type description
    
    Throws:
    
    java.sql.SQLException - thrown on failure.
  - getTypeInfoForODBC
```
public java.sql.ResultSet getTypeInfoForODBC()
                                      throws java.sql.SQLException
```
    Get a description of all the standard SQL types supported by this database. They are ordered by DATA_TYPE and then by how closely the data type maps to the corresponding JDBC SQL type. Same as getTypeInfo above, except that the result set will conform to ODBC specifications.
    
    Throws:
    
    java.sql.SQLException
  - getTypeInfoMinion
```
private java.sql.ResultSet getTypeInfoMinion(java.lang.String queryName)
                                      throws java.sql.SQLException
```
    Get a description of the standard SQL types supported by this database.
    
    Parameters:
    
    queryName - the name of the query that fetches the information
    
    Returns:
    
    a result set with SQL type description
    
    Throws:
    
    java.sql.SQLException
  - getIndexInfo
```
public java.sql.ResultSet getIndexInfo(java.lang.String catalog,
                                       java.lang.String schema,
                                       java.lang.String table,
                                       boolean unique,
                                       boolean approximate)
                                throws java.sql.SQLException
```
    Get a description of a table's indices and statistics. They are ordered by NON_UNIQUE, TYPE, INDEX_NAME, and ORDINAL_POSITION.
    Each index column description has the following columns:
    
    TABLE_CAT String => table catalog (may be null)
    TABLE_SCHEM String => table schema (may be null)
    TABLE_NAME String => table name
    NON_UNIQUE boolean => Can index values be non-unique? false when TYPE is tableIndexStatistic
    INDEX_QUALIFIER String => index catalog (may be null); null when TYPE is tableIndexStatistic
    INDEX_NAME String => index name; null when TYPE is tableIndexStatistic
    TYPE short => index type:
    
    tableIndexStatistic - this identifies table statistics that are returned in conjuction with a table's index descriptions
    tableIndexClustered - this is a clustered index
    tableIndexHashed - this is a hashed index
    tableIndexOther - this is some other style of index
    
    ORDINAL_POSITION short => column sequence number within index; zero when TYPE is tableIndexStatistic
    COLUMN_NAME String => column name; null when TYPE is tableIndexStatistic
    ASC_OR_DESC String => column sort sequence, "A" => ascending, "D" => descending, may be null if sort sequence is not supported; null when TYPE is tableIndexStatistic
    CARDINALITY int => When TYPE is tableIndexStatistic, then this is the number of rows in the table; otherwise, it is the number of unique values in the index.
    PAGES int => When TYPE is tableIndexStatisic then this is the number of pages used for the table, otherwise it is the number of pages used for the current index.
    FILTER_CONDITION String => Filter condition, if any. (may be null)
    Specified by:
    
    getIndexInfo in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schema - a schema name pattern; "" retrieves those without a schema
    
    table - a table name
    
    unique - when true, return only indices for unique values; when false, return indices regardless of whether unique or not
    
    approximate - when true, result is allowed to reflect approximate or out of data values; when false, results are requested to be accurate
    
    Returns:
    
    ResultSet - each row is an index column description
    
    Throws:
    
    java.sql.SQLException - thrown on failure.
  - getIndexInfoForODBC
```
public java.sql.ResultSet getIndexInfoForODBC(java.lang.String catalog,
                                              java.lang.String schema,
                                              java.lang.String table,
                                              boolean unique,
                                              boolean approximate)
                                       throws java.sql.SQLException
```
    Get a description of a table's indices and statistics. They are ordered by NON_UNIQUE, TYPE, INDEX_NAME, and ORDINAL_POSITION. Same as getIndexInfo above, except that the result set will conform to ODBC specifications.
    
    Throws:
    
    java.sql.SQLException
  - doGetIndexInfo
```
private java.sql.ResultSet doGetIndexInfo(java.lang.String catalog,
                                          java.lang.String schema,
                                          java.lang.String table,
                                          boolean unique,
                                          boolean approximate,
                                          java.lang.String queryName)
                                   throws java.sql.SQLException
```
    Does the actual work for the getIndexInfo metadata calls. See getIndexInfo() method above for parameter descriptions.
    
    Parameters:
    
    queryName - Name of the query to execute; is used to determine whether the result set should conform to JDBC or ODBC specifications.
    
    Throws:
    
    java.sql.SQLException
  - supportsResultSetType
```
public boolean supportsResultSetType(int type)
```
    JDBC 2.0 Does the database support the given result set type?
    
    Specified by:
    
    supportsResultSetType in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    type - defined in java.sql.ResultSet
    
    Returns:
    
    true if so
    
    See Also:
    
    Connection
  - supportsResultSetConcurrency
```
public boolean supportsResultSetConcurrency(int type,
                                            int concurrency)
```
    JDBC 2.0 Does the database support the concurrency type in combination with the given result set type?
    
    Specified by:
    
    supportsResultSetConcurrency in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    type - defined in java.sql.ResultSet
    
    concurrency - type defined in java.sql.ResultSet
    
    Returns:
    
    true if so
    
    See Also:
    
    Connection
  - ownUpdatesAreVisible
```
public boolean ownUpdatesAreVisible(int type)
```
    JDBC 2.0 Determine whether a result set's updates are visible.
    
    Specified by:
    
    ownUpdatesAreVisible in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    type - result set type, i.e. ResultSet.TYPE_XXX
    
    Returns:
    
    true if updates are visible for the result set type
  - ownDeletesAreVisible
```
public boolean ownDeletesAreVisible(int type)
```
    JDBC 2.0 Determine whether a result set's deletes are visible.
    
    Specified by:
    
    ownDeletesAreVisible in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    type - result set type, i.e. ResultSet.TYPE_XXX
    
    Returns:
    
    true if deletes are visible for the result set type
  - ownInsertsAreVisible
```
public boolean ownInsertsAreVisible(int type)
```
    JDBC 2.0 Determine whether a result set's inserts are visible.
    
    Specified by:
    
    ownInsertsAreVisible in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    type - result set type, i.e. ResultSet.TYPE_XXX
    
    Returns:
    
    true if inserts are visible for the result set type
  - othersUpdatesAreVisible
```
public boolean othersUpdatesAreVisible(int type)
```
    JDBC 2.0 Determine whether updates made by others are visible.
    
    Specified by:
    
    othersUpdatesAreVisible in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    type - result set type, i.e. ResultSet.TYPE_XXX
    
    Returns:
    
    true if updates are visible for the result set type
  - othersDeletesAreVisible
```
public boolean othersDeletesAreVisible(int type)
```
    JDBC 2.0 Determine whether deletes made by others are visible.
    
    Specified by:
    
    othersDeletesAreVisible in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    type - result set type, i.e. ResultSet.TYPE_XXX
    
    Returns:
    
    true if deletes are visible for the result set type
  - othersInsertsAreVisible
```
public boolean othersInsertsAreVisible(int type)
```
    JDBC 2.0 Determine whether inserts made by others are visible.
    
    Specified by:
    
    othersInsertsAreVisible in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    type - result set type, i.e. ResultSet.TYPE_XXX
    
    Returns:
    
    true if inserts are visible for the result set type
  - updatesAreDetected
```
public boolean updatesAreDetected(int type)
```
    JDBC 2.0 Determine whether or not a visible row update can be detected by calling ResultSet.rowUpdated().
    
    Specified by:
    
    updatesAreDetected in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    type - result set type, i.e. ResultSet.TYPE_XXX
    
    Returns:
    
    true if updates are detected by the resultset type
  - deletesAreDetected
```
public boolean deletesAreDetected(int type)
```
    JDBC 2.0 Determine whether or not a visible row delete can be detected by calling ResultSet.rowDeleted(). If deletesAreDetected() returns false, then deleted rows are removed from the result set.
    
    Specified by:
    
    deletesAreDetected in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    type - result set type, i.e. ResultSet.TYPE_XXX
    
    Returns:
    
    true if deletes are detected by the resultset type
  - insertsAreDetected
```
public boolean insertsAreDetected(int type)
```
    JDBC 2.0 Determine whether or not a visible row insert can be detected by calling ResultSet.rowInserted().
    
    Specified by:
    
    insertsAreDetected in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    type - result set type, i.e. ResultSet.TYPE_XXX
    
    Returns:
    
    true if inserts are detected by the resultset type
  - supportsBatchUpdates
```
public boolean supportsBatchUpdates()
```
    JDBC 2.0 Return true if the driver supports batch updates, else return false.
    
    Specified by:
    
    supportsBatchUpdates in interface java.sql.DatabaseMetaData
  - getUDTs
```
public java.sql.ResultSet getUDTs(java.lang.String catalog,
                                  java.lang.String schemaPattern,
                                  java.lang.String typeNamePattern,
                                  int[] types)
                           throws java.sql.SQLException
```
    JDBC 2.0 Get a description of the user-defined types defined in a particular schema. Schema specific UDTs may have type JAVA_OBJECT, STRUCT, or DISTINCT.
    Only types matching the catalog, schema, type name and type criteria are returned. They are ordered by DATA_TYPE, TYPE_SCHEM and TYPE_NAME. The type name parameter may be a fully qualified name. In this case, the catalog and schemaPattern parameters are ignored.
    Each type description has the following columns:
    
    TYPE_CAT String => the type's catalog (may be null)
    TYPE_SCHEM String => type's schema (may be null)
    TYPE_NAME String => type name
    CLASS_NAME String => Java class name
    DATA_TYPE String => type value defined in java.sql.Types. One of JAVA_OBJECT, STRUCT, or DISTINCT
    REMARKS String => explanatory comment on the type
    BASE_TYPE short => type code of the source type of a DISTINCT type or the type that implements the user-generated reference type of the SELF_REFERENCING_COLUMN of a structured type as defined in java.sql.Types (null if DATA_TYPE is not DISTINCT or not STRUCT with REFERENCE_GENERATION = USER_DEFINED)
    
    Note: If the driver does not support UDTs then an empty result set is returned.
    Specified by:
    
    getUDTs in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schemaPattern - a schema name pattern; "" retrieves those without a schema
    
    typeNamePattern - a type name pattern; may be a fully qualified name
    
    types - a list of user-named types to include (JAVA_OBJECT, STRUCT, or DISTINCT); null returns all types
    
    Returns:
    
    ResultSet - each row is a type description
    
    Throws:
    
    java.sql.SQLException - if a database-access error occurs.
  - getConnection
```
public java.sql.Connection getConnection()
```
    JDBC 2.0 Return the connection that produced this metadata object.
    
    Specified by:
    
    getConnection in interface java.sql.DatabaseMetaData
  - supportsStatementPooling
```
public boolean supportsStatementPooling()
```
    JDBC 3.0 Retrieves whether this database supports statement pooling.
    
    Specified by:
    
    supportsStatementPooling in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if statement pooling is supported; false otherwise
  - supportsSavepoints
```
public boolean supportsSavepoints()
```
    JDBC 3.0 Retrieves whether this database supports savepoints.
    
    Specified by:
    
    supportsSavepoints in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if savepoints are supported; false otherwise
  - supportsNamedParameters
```
public boolean supportsNamedParameters()
```
    JDBC 3.0 Retrieves whether this database supports named parameters to callable statements.
    
    Specified by:
    
    supportsNamedParameters in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if named parameters are supported; false otherwise
  - supportsMultipleOpenResults
```
public boolean supportsMultipleOpenResults()
```
    JDBC 3.0 Retrieves whether it is possible to have multiple ResultSet objects returned from a CallableStatement object simultaneously.
    
    Specified by:
    
    supportsMultipleOpenResults in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if a CallableStatement object can return multiple ResultSet objects simultaneously; false otherwise
  - supportsGetGeneratedKeys
```
public boolean supportsGetGeneratedKeys()
```
    JDBC 3.0 Retrieves whether auto-generated keys can be retrieved after a statement has been executed.
    
    Specified by:
    
    supportsGetGeneratedKeys in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if auto-generated keys can be retrieved after a statement has executed; false otherwise
  - supportsResultSetHoldability
```
public boolean supportsResultSetHoldability(int holdability)
```
    JDBC 3.0 Retrieves whether this database supports the given result set holdability.
    
    Specified by:
    
    supportsResultSetHoldability in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    holdability - - one of the following constants: ResultSet.HOLD_CURSORS_OVER_COMMIT or ResultSet.CLOSE_CURSORS_AT_COMMIT
    
    Returns:
    
    true if so; false otherwise executed; false otherwise
  - getResultSetHoldability
```
public int getResultSetHoldability()
```
    JDBC 3.0 Retrieves the default holdability of this ResultSet object.
    
    Specified by:
    
    getResultSetHoldability in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the default holdability which is ResultSet.HOLD_CURSORS_OVER_COMMIT
  - getDatabaseMajorVersion
```
public int getDatabaseMajorVersion()
```
    JDBC 3.0 Retrieves the major version number of the underlying database.
    
    Specified by:
    
    getDatabaseMajorVersion in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the underlying database's major version
  - getDatabaseMinorVersion
```
public int getDatabaseMinorVersion()
```
    JDBC 3.0 Retrieves the minor version number of the underlying database.
    
    Specified by:
    
    getDatabaseMinorVersion in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the underlying database's minor version
  - getJDBCMajorVersion
```
public int getJDBCMajorVersion()
```
    JDBC 3.0 Retrieves the major JDBC version number for this driver.
    
    Specified by:
    
    getJDBCMajorVersion in interface java.sql.DatabaseMetaData
    
    Returns:
    
    JDBC version major number
  - getJDBCMinorVersion
```
public int getJDBCMinorVersion()
```
    JDBC 3.0 Retrieves the minor JDBC version number for this driver.
    
    Specified by:
    
    getJDBCMinorVersion in interface java.sql.DatabaseMetaData
    
    Returns:
    
    JDBC version minor number
  - getSQLStateType
```
public int getSQLStateType()
```
    JDBC 3.0 Indicates whether the SQLSTATEs returned by SQLException.getSQLState is X/Open (now known as Open Group) SQL CLI or SQL99.
    
    Specified by:
    
    getSQLStateType in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the type of SQLSTATEs, one of: sqlStateXOpen or sqlStateSQL99
  - locatorsUpdateCopy
```
public boolean locatorsUpdateCopy()
                           throws java.sql.SQLException
```
    JDBC 3.0 Indicates whether updates made to a LOB are made on a copy or directly to the LOB.
    For the embedded driver, all updates will be made to a copy. Hence, this call will always return true
    
    Specified by:
    
    locatorsUpdateCopy in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if updates are made to a copy of the LOB; false if updates are made directly to the LOB
    
    Throws:
    
    java.sql.SQLException - Feature not implemented for now.
  - getSuperTypes
```
public java.sql.ResultSet getSuperTypes(java.lang.String catalog,
                                        java.lang.String schemaPattern,
                                        java.lang.String typeNamePattern)
                                 throws java.sql.SQLException
```
    JDBC 3.0 Retrieves a description of the user-defined type (UDT) hierarchies defined in a particular schema in this database. Only the immediate super type/ sub type relationship is modeled.
    
    Specified by:
    
    getSuperTypes in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schemaPattern - - a schema name pattern; "" retrieves those without a schema
    
    typeNamePattern - - a UDT name pattern; may be a fully-qualified name
    
    Returns:
    
    a ResultSet object in which a row gives information about the designated UDT
    
    Throws:
    
    java.sql.SQLException - Feature not implemented for now.
  - getSuperTables
```
public java.sql.ResultSet getSuperTables(java.lang.String catalog,
                                         java.lang.String schemaPattern,
                                         java.lang.String typeNamePattern)
                                  throws java.sql.SQLException
```
    JDBC 3.0 Retrieves a description of the table hierarchies defined in a particular schema in this database.
    
    Specified by:
    
    getSuperTables in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schemaPattern - - a schema name pattern; "" retrieves those without a schema
    
    typeNamePattern - - a UDT name pattern; may be a fully-qualified name
    
    Returns:
    
    a ResultSet object in which each row is a type description
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs
  - getAttributes
```
public java.sql.ResultSet getAttributes(java.lang.String catalog,
                                        java.lang.String schemaPattern,
                                        java.lang.String typeNamePattern,
                                        java.lang.String attributeNamePattern)
                                 throws java.sql.SQLException
```
    JDBC 3.0 Retrieves a description of the given attribute of the given type for a user-defined type (UDT) that is available in the given schema and catalog.
    
    Specified by:
    
    getAttributes in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - - a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog; null means that the catalog name should not be used to narrow the search
    
    schemaPattern - - a schema name pattern; "" retrieves those without a schema; null means that the schema name should not be used to narrow the search
    
    typeNamePattern - - a type name pattern; must match the type name as it is stored in the database
    
    attributeNamePattern - - an attribute name pattern; must match the attribute name as it is declared in the database
    
    Returns:
    
    a ResultSet object in which each row is a type description
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs.
  - getClientInfoProperties
```
public java.sql.ResultSet getClientInfoProperties()
                                           throws java.sql.SQLException
```
    JDBC 4.0
    Returns a list of the client info properties supported by the driver. The result set contains the following columns:
    
    NAME String=> The name of the client info property.
    
    MAX_LEN int=> The maximum length of the value for the property.
    
    DEFAULT_VALUE String=> The default value of the property.
    
    DESCRIPTION String=> A description of the property.
    
    The ResultSet is sorted by the NAME column.
    Specified by:
    
    getClientInfoProperties in interface java.sql.DatabaseMetaData
    
    Returns:
    
    A ResultSet object; each row is a supported client info property
    
    Throws:
    
    java.sql.SQLException - if an error occurs
  - getSchemas
```
public java.sql.ResultSet getSchemas(java.lang.String catalog,
                                     java.lang.String schemaPattern)
                              throws java.sql.SQLException
```
    JDBC 4.0
    Get the schema names available in this database. The results are ordered by schema name.
    The schema columns are:
    
    TABLE_SCHEM String => schema name
    
    TABLE_CATALOG String => catalog name (may be null)
    Specified by:
    
    getSchemas in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - catalog name used to narrow down the search; "" means no catalog, null means any catalog
    
    schemaPattern - schema name used to narrow down the search, null means schema name should not be used to narrow down search
    
    Returns:
    
    a ResultSet object in which each row is a schema description
    
    Throws:
    
    java.sql.SQLException - if a database error occurs
  - getRowIdLifetime
```
public java.sql.RowIdLifetime getRowIdLifetime()
                                        throws java.sql.SQLException
```
    Specified by:
    
    getRowIdLifetime in interface java.sql.DatabaseMetaData
    
    Throws:
    
    java.sql.SQLException
  - supportsStoredFunctionsUsingCallSyntax
```
public boolean supportsStoredFunctionsUsingCallSyntax()
                                               throws java.sql.SQLException
```
    Specified by:
    
    supportsStoredFunctionsUsingCallSyntax in interface java.sql.DatabaseMetaData
    
    Throws:
    
    java.sql.SQLException
  - autoCommitFailureClosesAllResultSets
```
public boolean autoCommitFailureClosesAllResultSets()
                                             throws java.sql.SQLException
```
    Returns whether or not all open ResultSets on a Connection are closed if an error occurs when auto-commit in enabled.
    
    Specified by:
    
    autoCommitFailureClosesAllResultSets in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true, since the embedded driver will close the open ResultSets
    
    Throws:
    
    java.sql.SQLException
  - isWrapperFor
```
public final boolean isWrapperFor(java.lang.Class<?> iface)
```
    Returns whether or not this instance implements the specified interface.
    
    Specified by:
    
    isWrapperFor in interface java.sql.Wrapper
    
    Parameters:
    
    iface - the interface to check for
    
    Returns:
    
    true if this implements the interface
  - unwrap
```
public final <T> T unwrap(java.lang.Class<T> iface)
                   throws java.sql.SQLException
```
    Returns this if this class implements the interface.
    
    Specified by:
    
    unwrap in interface java.sql.Wrapper
    
    Parameters:
    
    iface - the interface
    
    Returns:
    
    an object that implements the interface
    
    Throws:
    
    java.sql.SQLException - if no object is found that implements the interface
  - generatedKeyAlwaysReturned
```
public boolean generatedKeyAlwaysReturned()
```
    See DatabaseMetaData javadoc
    
    Specified by:
    
    generatedKeyAlwaysReturned in interface java.sql.DatabaseMetaData
  - getPseudoColumns
```
public java.sql.ResultSet getPseudoColumns(java.lang.String catalog,
                                           java.lang.String schemaPattern,
                                           java.lang.String tableNamePattern,
                                           java.lang.String columnNamePattern)
                                    throws java.sql.SQLException
```
    See DatabaseMetaData javadoc. Empty ResultSet because Derby does not support pseudo columns.
    
    Specified by:
    
    getPseudoColumns in interface java.sql.DatabaseMetaData
    
    Throws:
    
    java.sql.SQLException
  - getClientCachedMetaData
```
public java.sql.ResultSet getClientCachedMetaData()
                                           throws java.sql.SQLException
```
    Get metadata that the client driver will cache. The metadata is fetched using SYSIBM.METADATA (found in metadata_net.properties).
    
    Returns:
    
    the result set returned by SYSIBM.METADATA
    
    Throws:
    
    java.sql.SQLException - if a database error occurs
  - getSimpleQuery
```
private java.sql.ResultSet getSimpleQuery(java.lang.String nameKey,
                                          boolean net)
                                   throws java.sql.SQLException
```
    Execute a query in metadata.properties (or SPS in the SYS schema) or metadata_net.properties (or SPS in the SYSIBM schema).
    
    Parameters:
    
    nameKey - the name of the query
    
    net - if true, execute a query in metadata_net.properties; otherwise, execute a query in metadata.properties
    
    Returns:
    
    a ResultSet value
    
    Throws:
    
    java.sql.SQLException - if a database error occurs
  - getSimpleQuery
```
protected java.sql.ResultSet getSimpleQuery(java.lang.String nameKey)
                                     throws java.sql.SQLException
```
    Execute a query in metadata.properties, or an SPS in the SYS schema.
    
    Parameters:
    
    nameKey - the name of the query
    
    Returns:
    
    a ResultSet value
    
    Throws:
    
    java.sql.SQLException - if a database error occurs
  - getPreparedQueryUsingSystemTables
```
private java.sql.PreparedStatement getPreparedQueryUsingSystemTables(java.lang.String nameKey,
                                                                     boolean net)
                                                              throws java.sql.SQLException
```
    Get a stored prepared statement from the system tables.
    
    Parameters:
    
    nameKey - the name of the query
    
    net - if true, find query in SYSIBM schema; otherwise, find query in SYS schema
    
    Returns:
    
    a PreparedStatement value
    
    Throws:
    
    java.sql.SQLException - if a database error occurs
  - getPreparedQuery
```
private java.sql.PreparedStatement getPreparedQuery(java.lang.String queryName,
                                                    boolean net)
                                             throws java.sql.SQLException
```
    Either get the prepared query for the metadata call from the system tables, or from the metadata.properties or metadata_net.properties file. In soft upgrade mode, the queries stored in the system tables might not be upto date with the Derby engine release because system tables can't be modified in backward incompatible way in soft upgrade mode. Because of this, if the database is in soft upgrade mode, get the queries from metadata.properties file rather than from the system tables. Getting queries from metadata(_net).properties might cause problems if system catalogs have been changed between versions either by addition of columns or have new catalogs. To continue to support soft upgrade from older versions of database, find query that most closely matches database dictionary version.
    
    Parameters:
    
    queryName - Name of the metadata query for which we need a prepared statement
    
    net - if true, use metadata_net.properties instead of metadata.properties
    
    Returns:
    
    PreparedStatement
    
    Throws:
    
    java.sql.SQLException - if a database error occurs
  - getPreparedQuery
```
protected java.sql.PreparedStatement getPreparedQuery(java.lang.String queryName)
                                               throws java.sql.SQLException
```
    Get a prepared query from system tables or metadata.properties.
    
    Parameters:
    
    queryName - name of the query
    
    Returns:
    
    a PreparedStatement value
    
    Throws:
    
    java.sql.SQLException - if a database error occurs
  - getQueryFromDescription
```
private java.lang.String getQueryFromDescription(java.lang.String queryName,
                                                 boolean net)
                                          throws StandardException
```
    Given a queryName, find closest match in queryDescriptions. This method should be called in soft-upgrade mode only, where current software version doesn't match dictionary version. For these cases, there may be multiple entries in queryDescriptions for given queryName. Find a version of the query that closely matches dictionary version. This method is currently coded to handle two specific queries, getColumnPrivileges and getTablePrivileges. Derby databases that are 10.1 or earlier will not have new system tables added for 10.2 for privileges. It should be possible to automate finding closest match by generating all Major_Minor versions between software version and dictionary version and try each one from Dictionary version to current version. Since only needed for two queries, overhead may not be worth it yet.
    
    Parameters:
    
    queryName - name of the query
    
    net - if true, get the query from metadata_net.properties instead of metadata.properties
    
    Returns:
    
    the query text
    
    Throws:
    
    StandardException - if an error occurs
  - prepareSPS
```
private java.sql.PreparedStatement prepareSPS(java.lang.String spsName,
                                              java.lang.String spsText,
                                              boolean net)
                                       throws StandardException,
                                              java.sql.SQLException
```
    Throws:
    
    StandardException
    
    java.sql.SQLException
  - swapNull
```
protected static final java.lang.String swapNull(java.lang.String s)
```
  - getLanguageConnectionContext
```
private LanguageConnectionContext getLanguageConnectionContext()
```
    Gets the LanguageConnectionContext for this connection.
    
    Returns:
    
    the lcc for this connection
  - loadQueryDescriptions
```
private void loadQueryDescriptions()
```
    Loads the query descriptions from metadata.properties and metadata_net.properties into queryDescriptions and queryDescriptions_net.
  - run
```
public final java.lang.Object run()
```
    Performs a privileged action. Reads the query descriptions.
    
    Specified by:
    
    run in interface java.security.PrivilegedAction<java.lang.Object>
    
    Returns:
    
    null

Class EmbedDatabaseMetaData

Field Summary

Fields inherited from class org.apache.derby.impl.jdbc.ConnectionChild

Fields inherited from interface java.sql.DatabaseMetaData

Constructor Summary

Method Summary

Methods inherited from class org.apache.derby.impl.jdbc.ConnectionChild

Methods inherited from class java.lang.Object

Methods inherited from interface java.sql.DatabaseMetaData

Field Detail

ILLEGAL_UDT_TYPE

url

constantActionFactory

queryDescriptions

queryDescriptions_net

Constructor Detail

EmbedDatabaseMetaData

Method Detail

getQueryDescriptions

PBloadQueryDescriptions

allProceduresAreCallable

allTablesAreSelectable

getURL

getUserName

isReadOnly

nullsAreSortedHigh

nullsAreSortedLow

nullsAreSortedAtStart

nullsAreSortedAtEnd

getDatabaseProductName

getDatabaseProductVersion

getDriverName

getDriverVersion

getDriverMajorVersion

getDriverMinorVersion

usesLocalFiles

usesLocalFilePerTable

supportsMixedCaseIdentifiers

storesUpperCaseIdentifiers

storesLowerCaseIdentifiers

storesMixedCaseIdentifiers

supportsMixedCaseQuotedIdentifiers

storesUpperCaseQuotedIdentifiers

storesLowerCaseQuotedIdentifiers

storesMixedCaseQuotedIdentifiers

getIdentifierQuoteString

getSQLKeywords

getNumericFunctions

getStringFunctions

getSystemFunctions

getTimeDateFunctions

getSearchStringEscape

getExtraNameCharacters

supportsAlterTableWithAddColumn

supportsAlterTableWithDropColumn

supportsColumnAliasing

nullPlusNonNullIsNull

supportsConvert

supportsConvert

supportsTableCorrelationNames

supportsDifferentTableCorrelationNames

supportsExpressionsInOrderBy

supportsOrderByUnrelated

supportsGroupBy

supportsGroupByUnrelated

supportsGroupByBeyondSelect

supportsLikeEscapeClause

supportsMultipleResultSets

supportsMultipleTransactions

supportsNonNullableColumns

supportsMinimumSQLGrammar

supportsCoreSQLGrammar

supportsExtendedSQLGrammar

supportsANSI92EntryLevelSQL

supportsANSI92IntermediateSQL

supportsANSI92FullSQL

supportsIntegrityEnhancementFacility

supportsOuterJoins

supportsFullOuterJoins

supportsLimitedOuterJoins