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單項選擇題

Which of the following would you use to enable automatic media recovery for a database？（）

A.SET AUTORECOVERY ON
B.SET RECOVERY ON
C.SET AUTO ON
D.You cannot enable automatic media recovery.

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單項選擇題

Which of the following shut down options should not be used before performing a consistent whole database backup？（）

A.NORMAL
B.TRANSACTIONAL
C.ABORT
D.IMMEDIATE
E.INCONSISTENT

單項選擇題

Which of the following commands cannot use the functionality assosciated with theNLS_DATE_FORMAT variable？（）

A.RESTORE
B.RECOVER
C.REPORT
D.BACKUP

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