In which cases is reference partitioning effective in enhancing performance?()  

A .  It is effective only in partition pruning. B .  It is effective only in partitionwise joins provided that the query predicates are different from the partitioning key. C .  It is effective in both partition pruning as well as partitionwise joins provided that the query predicates are identical to the partitioning key. D .  It is effective in both partition pruning as well as partitionwise joins irrespective of whether the query predicates are different from or identical to the partitioning key.

时间:2022-10-09 23:05:14 所属题库:1Z0-053题库

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