多項選擇題

You are working on an Oracle Database 10g database. Because of data loss， you decided to perform a Flashback Database operation using the following command：
SQL> FLASHBACK DATABASE TO TIMESTAMP（SYSDATE 5/24）;
Which two statements are true？（）

A.SYSDATE should not be used with TIMESTAMP.
B.The database must have multiplexed redo log files.
C.The database must be in the MOUNT state to execute the command.
D.The database must be opened with the RESETLOGS option after the flashback operation.
E.The entire database needs to be restored from the most recent backup before the flashback operation.

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單項選擇題

On Tuesday， a junior DBA dropped an important application user account， whose schema has important tables. You are asked to recover all the objects in the schema. On investigation， you find that the user account was dropped at 11：00 a.m. and Sunday’s backup is the most recent backup. Which flashback feature would you use？（）

A.Flashback Drop
B.Flashback Table
C.Flashback Database
D.Flashback Version Query
E.Flashback Transaction Query

單項選擇題

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

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You are working on an Oracle Database 10g database. Because of data loss， you decided to perform a Flashback Database operation using the following command： SQL> FLASHBACK DATABASE TO TIMESTAMP（SYSDATE 5/24）; Which two statements are true？ （）

你可能感興趣的試題

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？（）

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You are working on an Oracle Database 10g database. Because of data loss， you decided to perform a Flashback Database operation using the following command：
SQL> FLASHBACK DATABASE TO TIMESTAMP（SYSDATE 5/24）;
Which two statements are true？（）

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？（）