Oracle
1Z0-027 · Question #36
1Z0-027 Question #36: Real Exam Question with Answer & Explanation
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Question
You have altered an index supporting a constraint to be invisible on a large read only data warehouse table, to determine it Smart Scan operations will be fast enough to satisfy your performance requirements. Given the results of your testing, you consider dropping the index. Which two statements are true?
Options
- AYou must retain the index and set the constraint to DISABLE NOVALIDATE RELY to enforce the constraint
- BYou may drop the index and use a constraint with the DISABLE NOVALIDATE RELY flags
- CYou must retain the index and make it visible again for the constraint to be enforced.
- DYou may drop the index and make the constraint invisible, because this is enough for the constraint to
- EYou may retain the index, and leave it as invisible, because this is enough for the constraint to be recognized.
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