## System Tables

The following system tables are known in MaxDB, but they are empty because the corresponding objects or information does not exist in MaxDB:

ALL_ERRORS
ALL_SOURCE
ALL_SNAPSHOTS
ALL_TRIGGER_COLS

DBA_2PC_NEIGHBORS
DBA_2PC_PENDING
DBA_AUDIT_EXISTS
DBA_AUDIT_OBJECT
DBA_AUDIT_SESSION
DBA_AUDIT_STATEMENT
DBA_AUDIT_TRAIL
DBA_BLOCKERS
DBA_CLUSTERS
DBA_CLU_COLUMNS
DBA_DATA_FILES
DBA_DDL_LOCKS
DBA_DML_LOCKS
DBA_ERRORS
DBA_EXP_FILES
DBA_EXP_OBJECTS
DBA_EXTENTS
DBA_LOCKS
DBA_OBJECT_SIZE
DBA_PRIV_AUDIT_OPTS
DBA_PROFILES
DBA_ROLLBACK_SEGS
DBA_SNAPSHOTS
DBA_SNAPSHOT_LOGS
DBA_SOURCE
DBA_STMT_AUDIT_OPTS
DBA_SYS_PRIVS
DBA_TABLESPACES
DBA_TRIGGER_COLS
DBA_TS_QUOTAS

RESOURCE_COST
ROLE_SYS_PRIVS
ROLE_TAB_PRIVS

USER_AUDIT_OBJECT
USER_AUDIT_SESSION
USER_AUDIT_TRAIL
USER_CLUSTERS
USER_CLU_COLUMNS
USER_ERRORS
USER_EXTENTS
USER_OBJECT_SIZE
USER_SNAPSHOTS
USER_SNAPSHOT_LOGS
USER_SOURCE
USER_SYS_PRIVS
USER_TABLESPACES
USER_TRIGGER_COLS
USER_TS_QUOTAS

The following system table columns always contain a NULL value because the information is not available in the format required in MaxDB:

System Table(s) | Column(s)
ALL_CONSTRAINT, USER_CONSTRAINTS, DBA_CONSTRAINTS | R_CONSTRAINT_NAME
ALL_DEPENDENCIES, USER_DEPENDENCIES, DBA_DEPENDENCIES | REFERENCED_LINK_NAME
ALL_INDEXES, USER_INDEXES, DBA_INDEXES | PREFIX_LENGTH INI_TRANS MAX_TRANS INITIAL_EXTENT NEXT_EXTENT MIN_EXTENT MAX_EXTENTS PCT_INCREASE PCT_FREE BLEVEL LEAF_BLOCKS AVG_LEAF_BLOCKS_PER_KEY AVG_DATA_BLOCKS_PER_KEY CLUSTERING_FACTOR NUM_ROWS SAMPLE_SIZE LAST_ANALYZED DEGREE INSTANCES BUFFER_POOL DUARTION PCT_DIRECT_ACCESS ITYP_OWNER ITYP_NAME PARAMETERS GLOBAL_STATS
ALL_OBJECTS, USER_OBJECTS, DBA_OBJECTS | SUBOBJECT_NAME DATA_OBJECT_ID
ALL_SYNONYMS, USER_SYNONYMS, DBA_SYNONYMS | DB_LINK
ALL_TABLES, USER_TABLES, DBA_TABLES | CLUSTER_NAME IOT_NAME PCT_FREE PCT_USED INI_TRANS MAX_TRANS INITIAL_EXTENT NEXT_EXTENT MIN_EXTENT MAX_EXTENTS PCT_INCREASE FREELISTS FREELIST_GROUPS BLOCKS EMPTY_BLOCKS AVG_SPACE CHAIN_CNT AVG_ROW_LEN AVG_SPACE_FREELIST_BLOCKS NUM_FREELIST_BLOCKS DEGREE INSTANCES IOT_TYPE BUFFER_POOL ROW_MOVEMENT GLOBAL_STATS DUARTION SKIP_CORRUPT MONITORING
ALL_TAB_COLUMNS, USER_TAB_COLUMNS, DBA_TAB_COLUMNS | DATA_TYPE_MOD DATA_TYPE_OWNER LOW_VALUE HIGH_VALUE DENSITY NUM_NULLS NUM_BUCKETS LAST_ANALYZED SAMPLE_SIZE GLOBAL_STATS AVG_COL_LENGTH
ALL_TRIGGERS, USER_TRIGGERS, DBA_TRIGGERS | COLUMN_NAME REFERENCING_NAME WHEN_CLAUSE ACTION_TYPE
ALL_VIEWS, USER_VIEWS, DBA_VIEWS | TYPE_TEXT_LENGTH TYPE_TEXT OID_TEXT_LENGTH OID_TEXT VIEW_TYPE_OWNER VIEW_TYPE
DBA_IND_COLUMNS | COLUMN_EXPRESSION
USER_FREE_SPACE, DBA_FREE_SPACE | RELATIVE_FNO
USER_RESOURCE_LIMITS | RESOURCE_NAME LIMIT
USER_SEGMENTS, DBA_SEGMENTS | BYTES BLOCKS EXTENTS INITIAL_EXTENT NEXT_EXTENT IN_EXTENT MAX_EXTENTS PCT_INCREASE FREELISTS FREELIST_GROUPS BUFFER_POOL RESOURCE_NAME
USER_SYS_PRIVS | PRIVILEGE
USER_USERS, DBA_USERS | ACCOUNT_STATUS LOCK_DATE EXPIRY_DATE PROFILE INITIAL_RSRC_CONSUMER_GROUP EXTERNAL_NAME