Oracle 11g OCP认证052考试题库(73)-CUUG内部学员版
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我要咨询11g版本的OCP考试持续了好几年,一直比较稳定,直到2018年4月份左右,052考试不断的出现新的考题,虽然我们收集整理了不少,但新题还是难避免,这样出现一部分新题,我们收集一部分,持续了不短的时间。
对于这些052考试新题,不仅老师给出了答案,学员也积极的找资料、查文档,形成了一份内部综合版本,通过分数非常高,一起渡过这次052考试的难关。
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052考试题-73(OCP考试题库讨论群:101-5267-481 验证:ocp)
Which four are true about UNDO ?
A)Guaranteed UNDO retention prevents inactive and expired undo from being deleted.
B)DML statements generate UNDO.
C)Active UNDO is never deleted.
D)Inactive and expired UNDO is never deleted.
E)Inactive and unexpired UNDO is never deleted.
F)It can be used to restore a table by using FLASHBACK TABLE.
G) DDL statements generate UNDO.
Answer: BCFG
CUUG: 因为会对数据字典进行修改