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Which two are true about Oracle's Optimizer statistics? A)They are automatically updated when ddl statements execute. B)They can be calculated exactly 阅读全文
posted @ 2019-07-29 11:15
cnblogs_5359
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摘要：
Which three are true about Optimizer Statistics? A)They can be gathered manually B)They are automatically updated by DML statements C)They contain the 阅读全文
posted @ 2019-07-29 10:37
cnblogs_5359
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