A.backupthecontrolfiletotrace
B.bringdatabasetotheMOUNTstate
C.openaconnectiontotheRMANrecoverycatalog，whichcontainstheRMANmetadataforthetargetdatabase
D.setthedatabaseID（DBID），butonlyiftheDB_NAMEparameterassociatedwiththetargetdatabaseisuniqueintherecoverycatalog
正确答案：参考C
