单项选择题
You are maintaining the PROD database for NetFx Corporation. You have configured controlfile autobackup in your database. At 6：00 P.M. on Monday， you issue the following command： RMAN>BACKUP DATABASE； At 8：00 A.M. on Tuesday， you are unable to start the database because all the control files are missing. You decide to restore the control files from the backup by using the RMAN> RESTORE CONTROLFILE FROM AUTOBACKUP； command. Which operation should you perform before using the RMAN> RESTORE CONTROLFILE FROM AUTOBACKUP； command？（）
A. Start the database in the MOUNT stage.
B. Back up the control file to trace.
C. Set the DBID
D. Issue the RECOVER DATABASE command.
相关考题
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单项选择题
In which scenario will you issue the following command？（） SQL> RECOVER DATABASE UNTIL TIME ’2005-10-04 ： 12：09：08’ USING BACKUP CONTROLFILE；
A. when all the control files are missing and only a binary backup of the current control file exists
B. when a multiplexed copy of the current control file is missing
C.when all the control files are missing and only a script containing the CREATE CONTROLFILE statement exists
D. when the SPFILE is missing -
单项选择题
Inwhichscenariowillyouperformanincompleterecovery？（）
A. when a table is dropped and stored in the Recycle Bin
B. when all the control files are deleted
C. when a member of a multiplexed redo log group is dropped
D. when you are required to recover a table to its previous state -
单项选择题
You are working as a DBA in a company. The datafiles in the database are as follows： On Monday， you tried to start up the database but failed because all the control files were missing. You recreated the control file using the script you have created by issuing the ALTER DATABASE BACKUP CONTROLFILE TO TRACE command. What is the prerequisite for recreating the control file？（）
A. All the datafiles should be listed in the CREATE CONTROLFILE statement.
B. The DATA2.dbf and DATA3.dbf datafiles should be listed in the CREATE CONTROLFILE statement.
C. The SYSTEM01.dbf datafile should be listed in the CREATE CONTROLFILE statement.
D. The SYSAUX01.dbf datafile should be listed in the CREATE CONTROLFILE statement.
