Examine the parameters for your database instance: Which three statements are true about
the process of automatic optimization by using cardinality feedback?
A.
After the optimizer identifies a query as a re-optimization candidate, statistics collected by
the collectors are submitted to the optimizer.
B.
The optimizer automatically changes a plan during subsequent execution of a SQL
statement if there is a huge difference in optimizer estimates and execution statistics.
C.
The optimizer can re optimize a query only once using cardinality feedback.
D.
The optimizer enables monitoring for cardinality feedback after the first execution of a
query.
E.
The optimizer does not monitor cardinality feedback if dynamic sampling and multicolumn
statistics are enabled.
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