## List of All Search Strategies

The following lists all the search strategies recognized by SQL Optimizer. The names match the return codes of the EXPLAIN statement. You can use this statement to query the search strategy chosen by the SQL Optimizer for a particular SQL statement.

CATALOG KEY ACCESS

CATALOG SCAN

CATALOG SCAN USING USER EQUAL CONDITION

DIFFERENT STRATEGIES FOR OR-TERMS

EQUAL CONDITION FOR INDEX

EQUAL CONDITION FOR KEY

IN CONDITION FOR INDEX

IN CONDITION FOR KEY

INDEX SCAN

JOIN VIA INDEXED COLUMN

JOIN VIA KEY COLUMN

JOIN VIA KEY RANGE

JOIN VIA MULTIPLE INDEXED COLUMNS

JOIN VIA MULTIPLE KEY COLUMNS

JOIN VIA RANGE OF MULTIPLE INDEXED COL.

JOIN VIA RANGE OF MULTIPLE KEY COLUMNS

NO RESULT SET POSSIBLE

NO STRATEGY NOW (ONLY AT EXECUTION TIME)

RANGE CONDITION FOR KEY

RANGE CONDITION FOR INDEX

SUBQ CONDITION FOR INDEX

SUBQ CONDITION FOR KEY

TABLE SCAN

See also:

Search Strategies