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单项选择题 You executed the following command in Recovery Manager (RMAN):  RMAN> RESTORE CONTROLFILE;  Which operation must you perform before this command is executed?() 

A、back up the control file to trace

B、bring database to the MOUNT state

C、open a connection to the RMAN recovery catalog, which contains the RMAN metadata for the target database

D、set the database ID (DBID), but only if the DB_NAME parameter associated with the target database is unique in the recovery catalog

  • C
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