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Oracle® Database Reference
11g Release 2 (11.2)

E40402-10
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OPTIMIZER_SECURE_VIEW_MERGING

Property Description
Parameter type Boolean
Default value true
Modifiable ALTER SYSTEM
Range of values true | false
Basic No
Oracle RAC Multiple instances can have different values

OPTIMIZER_SECURE_VIEW_MERGING enables the optimizer to use view merging to improve query performance without performing the checks that would otherwise be performed to ensure that view merging does not violate any security intentions of the view creator.

Values:

To take advantage of query rewrite for a particular query, you must disable the OPTIMIZER_SECURE_VIEW_MERGING parameter.