單項選擇題

Which of the following is a valid way of putting a tablespace named DAVE_TBS into hot backup mode?（）

A.alter tablespace DAVE_TBS backup mode
B.alter tablespace DAVE_TBS start backup
C.alter tablespace DAVE_TBS begin backup
D.alter tablespace DAVE_TBS backup begin
E.alter tablespace DAVE_TBS backup

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單項選擇題

Which command will result in a trace file being created with the create controlfile command contained in it?（）

A.alter database backup controlfile
B.alter database backup controlfile to trace
C.alter database controlfile backup
D.alter database controlfile backup to ’/ora01/oracle/ctrl_backup.ctl’
E.alter database begin controlfile backup

單項選擇題

hich of the following RMAN structures can data from a datafile span?（）

A.RMAN backup-set pieces spanning backup sets
B.RMAN backup-set pieces within a given backup sets
C.RMAN backups
D.RMAN channels
E.None of the above