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Oracle 11G OCP 1Z0-053 385

原创 Oracle 作者:LuiseDalian 时间:2014-09-30 09:09:53 0 删除 编辑
(385)Which of the following statements is true regarding implementing a Flashback Table recovery?

A. An SCN is never used to perform a Flashback Table recovery.

B. If a significant number of changes have been made to the table,row movement must be enabled.

C. The tablespace must be offline before performing a Flashback Table recovery.

D. Flashback Table recovery is completely dependent on the availability of undo data in the undo tablespace.

答案:(D)

解析:

A(X),SCN肯定会用到,即使没显式使用,Oracle自己也会使用

B(X),任何情况下都需要开启行移动

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