Pavan DBA's Blog

The DBA Knowledge Store

12cR2 feature # 3 – parameters default value change

Posted by Pavan DBA on December 12, 2016


Some parameters default value has been changed in 12cR2 as follows

OPTIMIZER_ADAPTIVE_PLANS controls adaptive plans. It is now set by default to FALSE. Adaptive plans is the alternative execution plans which will be decided during query executions.

OPTIMIZER_ADAPTIVE_STATISTICS controls adaptive statistics. It is set by default to FALSE.

SQL92_SECURITY Default is TRUE

If a user want to perform DELETE or UPDATE on an object, it should have SELECT privilege as mandatory from now onwards.

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