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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