考试
2021-02-25 12:23:32

(多选题)Which statement

题目描述

A It saves disk space and reduces memory usage.

B It saves disk space but has no effect on memory usage.

C It incurs extra CPU overhead during DML as well as direct loading operations.

D It incurs extra CPU overhead during DML but not direct loading operations.

E It requires uncompress operation during I/O.

答案解析

[db:答案解析]

A,C

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