问题:
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.
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?()
● 参考解析
本题暂无解析