单项选择题
A. online redo log files
B. alert log files
C. control file
D. datafiles associated with the SYSTEM tablespace
多项选择题 IdentifyfourusesoftheOracleScheduler.（）
多项选择题 You executed the following command in Recovery Manager （RMAN） to perform a backup of the DETTBS tablespace： RMAN> BACKUP TABLESPACE DETTBS； Under which conditions would this command execute successfully？ （）
多项选择题 YouareconnectedtoRecoveryManager（RMAN）withoutarecoverycatalog.Thereisnocopyofthecontrolfileavailable.Youwanttorestorethecontrolfilefromanautobackup.Toretrievetheautobackup，youneedthedatabaseID（DBID）.InwhichtwosourceswouldyoufindtheDBID？（）