Q41. Which two are true about Optimizer Statistics?
Q41. Which two are true about Optimizer Statistics?
- A. By default, they are automatically gathered by a maintenance job.
- B. They provide real-time data about schema objects.
- C. They can be gathered by the DBMS_STATS package.
- D. They are gathered by the SQL Turning Advisor.
- E. They are ignored by Optimizer if they are stale.
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