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Oracle

1Z0-050 · Question #68

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…

The correct answer is A. The optimizer adds the new plan to the plan history. E. The optimizer costs each of the accepted plans in the SQL plan baseline and picks the one with. See the full explanation below for the reasoning.

Question

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? (Choose two.)

Options

  • AThe optimizer adds the new plan to the plan history.
  • BThe optimizer selects the new plan for the execution of the SQL statement.
  • CThe optimizer adds the new plan to the SQL plan baseline as an accepted plan.
  • DThe optimizer adds the new plan to the SQL plan baseline but not in the ENABLED state.
  • EThe optimizer costs each of the accepted plans in the SQL plan baseline and picks the one with

How the community answered

(30 responses)
  • A
    83% (25)
  • B
    10% (3)
  • C
    3% (1)
  • D
    3% (1)

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