多项选择题

A. The database must be in ARCHIVELOG modeB. The databa……

What two are the prerequisites for enabling Flashback Database？（）

A. The database must be in ARCHIVELOG mode
B. The database must be in MOUNT EXCLUSIVE mode
C. The database must be opened in RESTRICTED mode
D. The database instance must be started in the NOMOUNT state
E. The database instance must have the keep buffer pool defined

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热门试题

单项选择题Whichtypeofbackupmustbeperformedfirstwithanincrementalbackup？（）

A. Level 1
B. Level 0
C. Level 2
D. Level 3

单项选择题Whichtypeofbackupbacksuponlydatablocksmodifiedsincethemostrecentbackupatthesamelevelorlower？（）

A. Differential incremental backup
B. Different incremental backup
C. Cumulative backup
D. Cumulative incremental backup

单项选择题Whichisthecorrectcommandtobackupthedatabase，backupthearchivedredologs，andthenremovethebacked-uparchivedredologs？（）

A. backup database
B. backup database and archivelogs
C. backup database plus archivelogs
D. backup database plus archivelog delete input
E. backup database and archivelog delete input

单项选择题Compressedbackupsworkwithwhichofthefollowingcommands？（）

A. copy as backup
B. backup as copy
C. backup
D. copy

单项选择题Consider the following command： Backup database plus archivelog delete input； How many backup sets would be created by this command if the following were true：（） Control-file a NN uto backups were enabled. NN The size of backup sets was not restricted. NN One channel was allocated.

A. 1
B. 2
C. 3
D. 4
E. 5