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043-175

原创 Linux操作系统 作者:jbymy2000 时间:2012-03-10 10:48:48 0 删除 编辑
175. You have a read-only tablespace on read-only media. You want to
perform. a media recovery on the existing data files, but using a back
up control file. The backup control file indicates that the status of
the read-only tablespace was read/write when the control file was bac
ked up. What should you consider?
A.take data files from the read-only tablespace offline before perfor
ming a recovery
B.recovery using backup control file is not possible, so restore all
the files from the last full database backup, and then open the datab
ase
C.drop the read-only tablespace and re-create the tablespace after re
covery
D.perform. a recovery; status of the tablespace in control file will b
e changed automatically
Answer: A
只读表空间位于只读媒体上,你想要执行数据库恢复,使用原来备份的控制
文件,这个控制文件记录的只读表空间还是可读写的,你需要在nomount 状态下,
恢复控制文件,接着在mount 状态下将只读表空间offline 然后再恢复数据库
(需试验)

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