考试
2021-02-25 12:23:13

(多选题)Which statements are true

题目描述

AIt saves disk space and reduces memory usage.

BIt saves disk space but has no effect on memory usage.

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

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

EIt requires uncompress operation during I/O.

答案解析

[db:答案解析]

A,C

加载中...
AI正在思考中,请稍候...