考试
2021-02-25 12:23:52

(多选题)Which two&#

题目描述

A Flashback Table can be performed on system tables.

B Flashback Table operation does not shrink the segments.

C Flashback Table uses log mining to extract SQL_REDO and SQL_UNDO statements.

D Flashback Table operation acquires exclusive data manipulation language (DML) locks.

答案解析

[db:答案解析]

B,D

加载中...
AI正在思考中,请稍候...