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Which three are the valid statements in relation to SQL plan baselines?（）
A:The plans can be manually loaded to the SQL plan baseline.
B:The plans in the SQL plan baseline are verified and accepted plans.
C:The plans generated for every SQL statement are stored in the SQL plan baseline by default.
D:The plan baselines are stored temporarily in the memory as long as the database instance is running.
E:  For the SQL plan baselines to be accessible to the optimizer, the SYSAUX tablespace must be online.

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出自：Oracle认证

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