单项选择题

RMAN enables you to open the target database when it is already mounted. Which command must you execute at the RMAN prompt to open the database？（）

A.’SQL ALTER DATABASE OPEN’；
B.SQL ALTER DATABASE ’OPEN’；
C.OPEN DATABASE；
D.DATABASE OPEN

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单项选择题

A.RECOVER DATABASE
B.RECOVER TABLESPACE
C.RECOVER DATAFILE
D.ALTER DATABASE RECOVER DATAFILE

单项选择题

A.V$COPY_CORRUPT
B.V$COPY_CORRUPTION
C.V$BACKUP_CORRUPT
D.V$BACKUP_CORRUPTION

单项选择题

A.V$DATAFILE
B.V$DATAFILE_HEADER
C.DBA_DATA_FILES
D.V$DBFILE
E.V$DATAFILE_ERRORS