單項(xiàng)選擇題

Your database has a backup that was taken yesterday （Tuesday） between 13：00 and 15：00 hours. This is the only backup you have. You have lost all the archived redo logs generatedsince the previous Monday， but you have archived redo logs available from the previous Sunday and earlier. You now need to restore your backup due to database loss.
To which point can you restore your database？（）

A. 13：00 on Tuesday.
B. 15：00 on Tuesday.
C. Up until the last available archived redo log on Sunday.
D. To any point； all the redo should still be available in the online redo logs.
E. The database is not recoverable.

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單項(xiàng)選擇題

Which command is used to open the database after an incomplete recovery？（）

A. alter database open
B. alter database open repairlog
C. alter database open resetlogs
D. alter database open resetlog
E. alter database resetlogs open

單項(xiàng)選擇題

You have lost datafiles 1 and 3 from your database，and the database has crashed.
In what order should you perform the following steps to recover your database？（）
1. Take the datafiles that were lost offline.
2. startup mount the database
3. Issue the alter database open command.
4. Restore the datafiles that were lost
5. Recover the datafiles with the recover datafile command.
6. Bring the datafiles back online.
7. Recover the database with the recover database command.

A. 2，1，3，4，5，6
B. 2，4，5，3
C. 4，7，3
D. 2，4，7，3
E. 2，7，3

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Which command is used to open the database after an incomplete recovery？（）

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Which command is used to open the database after an incomplete recovery？（）