发布日期:2020-04-10
A.Statistics collection is not done for the CUSTOMERS table when schema stats are gathered.
B.Statistics collection is not done for the CUSTOMERS table when database stats are gathered.
C.Any existing statistics for the CUSTOMERS table are still available to the optimizer at parse time.
D.Statistics gathered on the CUSTOMERS table when schema stats are gathered are stored as pending statistics.
E.Statistics gathered on the CUSTOMERS table when database stats are gathered are stored as pending statistics.
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