单项选择题
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
相关考题
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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？ （）
A.The database is in NOMOUNT state.
B.The database is in ARCHIVELOG mode and the tablespace is online.
C.The database is in ARCHIVELOG mode and the tablespace is offline.
D.The database is in NOARCHIVELOG mode and the tablespace is online.
E.The database is in NOARCHIVELOG mode and the tablespace is offline. -
多项选择题
YouhavesetthevalueoftheNLS_TIMESTAMP_TZ_FORMATparameterintheparameterfiletoYYYYMMDD.Thedefaultformatofwhichtwodatatypeswouldbeaffectedbythissetting？（）
A.DATE
B.TIMESTAMP
C.INTERVAL YEAR TO MONTH
D.INTERVAL DAY TO SECOND
E.TIMESTAMP WITH LOCAL TIME ZONE -
单项选择题
Youexecutethefollowingcommandtoenableasessioninresumablemode：SQL>ALTERSESSIONENABLERESUMABLETIMEOUT60Whatistheimpactofatimeoutonthestatementsbeingsuspended？（）
A.The statements remain suspended for at least 60 seconds.
B.The statements are suspended for 60 seconds and then they are executed.
C.The suspended statements error out if the problem is not rectified within 60 seconds.
D.The statements are automatically suspended 60 seconds after an error is received， and then attempt to execute normally again.
