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2、Which two are true about Optimizer Statistics? ❑ A) They do not persist across Instance restarts. ❑ B) They are automatically updated when DDL state 阅读全文
posted @ 2018-07-06 11:29
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1、.Which two are true about the Archive (ARCn) processes?❑ A) They automatically delete obsolete archive logs to makespace for new archive logs.❑ B) T 阅读全文
posted @ 2018-07-05 14:21
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