多选题The OPTIMIZER_USE_PLAN_BASELINES parameter is set to TRUE. The optimizer generates a plan for a SQL statement but does not find a matching plan in the SQL plan baseline. Which two operations are performed by the optimizer in this scenario?()AThe optimi

题目
多选题
The OPTIMIZER_USE_PLAN_BASELINES parameter is set to TRUE. The optimizer generates a plan for a SQL statement but does not find a matching plan in the SQL plan baseline. Which two operations are performed by the optimizer in this scenario?()
A

The optimizer adds the new plan to the plan history.

B

The optimizer selects the new plan for the execution of the SQL statement.

C

The optimizer adds the new plan to the SQL plan baseline as an accepted plan.

D

The optimizer adds the new plan to the SQL plan baseline but not in the ENABLED state.

E

The optimizer costs each of the accepted plans in the SQL plan baseline and picks the one with the lowest cost.


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参考答案和解析
正确答案: E,A
解析: 暂无解析