（单选题）
Examine the RMAN command： SWITCH DATAFILE ’/DISK3/user_data01.dbf’； Which command do you need to issue before you issue the above command， so that RMAN finds the file in the restored location of ’DISK2/user_data01.dbf’？ （）
ARESTORE DATAFILE ’/DISK2/user_data01.dbf’
BRESTORE DATAFILE ’/DISK3/user_data01.dbf’
CSET NEWNAME FOR ’/DISK3/user_data01.dbf’ TO’/DISK2/user_data01.dbf’
DSET NEWNAME FOR ’/DISK2/user_data01.dbf’ TO’/DISK3/user_data01.dbf’
正确答案
答案解析
略
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