單項(xiàng)選擇題

You are using the following command to clear the log file group： ALTER DATABASE CLEAR LOFFILE GROUP 2； In which case would the command be successful？（）

A.Group 2 is the active group.
B.Group 2 is the current group.
C.Database is in the MOUNT state.
D.Group 2 has been already archived.

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單項(xiàng)選擇題

You are working on a very large database. You had performed a binary backup of the control file a month ago. After this you added a few tablespaces， and dropped a couple of tablespaces. This morning， due to hardware failure， you lost all your control files.
How would you recover the database from this situation？（）

A.A
B.B
C.C
D.D
E.E

單項(xiàng)選擇題

In the instance of the PROD database， the checkpoint （CKPT） process runs after every minute. A database user updates the rows of the ORDERS table. Because of the configuration， the CKPT process gets initiated before the user commits the transaction. What would happen to the modified blocks when the CKPT process is started？（）

A.The modified blocks would be written to the data files.
B.The modified blocks would be written to the temp files.
C.The modified blocks would be written to the control file.
D.The modified blocks would be written to the redo log files.
E.The modified blocks would be written to the archived redo log files.
F.The modified blocks would be retained in the database buffer cache.

You are using the following command to clear the log file group： ALTER DATABASE CLEAR LOFFILE GROUP 2； In which case would the command be successful？（）

你可能感興趣的試題

You are using the following command to clear the log file group： ALTER DATABASE CLEAR LOFFILE GROUP 2； In which case would the command be successful？（）