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Oracle® Database Reference
11g Release 2 (11.2)

E40402-15
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QUERY_REWRITE_ENABLED

Property Description
Parameter type String
Syntax QUERY_REWRITE_ENABLED = { false | true | force }
Default value If OPTIMIZER_FEATURES_ENABLE is set to 10.0.0 or higher, then true

If OPTIMIZER_FEATURES_ENABLE is set to 9.2.0 or lower, then false

Modifiable ALTER SESSION, ALTER SYSTEM
Oracle RAC Multiple instances can have different values.

QUERY_REWRITE_ENABLED allows you to enable or disable query rewriting globally for the database.

Values:

To take advantage of query rewrite for a particular materialized view, you must enable query rewrite for that materialized view, and you must enable cost-based optimization.

See Also: