Oracle
1Z0-082 · Question #97
Which three are true about the Oracle Optimizer? (Choose three.)
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Manage Performance
Question
Which three are true about the Oracle Optimizer? (Choose three.)
Options
- AIt determines the optimal table join order and method.
- BIt generates execution plans for SQL statements based on relevant schema objects, system and
- CIt can optimize only SELECT statements.
- DIt will only generate SQL Plan Directives specific to a given SQL statement.
- EIt can re-optimize execution plans after previous executions detect suboptimal plans.
- FIt updates stale object statistics in the Data Dictionary.
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Topics
#query optimizer#execution plans#SQL Plan Directives#statistics