试题详情
- 单项选择题 A data file became corrupted in your database due to bad sectors on the disk. Because of corruption， you lost all the important tables in that data file. Which method would you use for recovery？（）
A、flash back all the tables in the data file， one by one
B、restore the data file to a new location and perform a media recovery
C、flash back the database; there is no need to restore the data file
D、restore the data file from the most recent backup and flash back the database
- B
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