单选题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 traceB bring database to the MOUNT stateC open a connection to
题目
单选题
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
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参考答案和解析
正确答案：
C
解析：
暂无解析