单选题To clean up old records that are in a Flashback Data Archive and are past the retention period, what must the DBA do?()A TRUNCATE the archive table.B DROP the Flashback Data Archive.C Nothing;expired rows are automatically removed.D Nothing;expired rows are moved to an archive table.E Delete entries from the archive where the metadata date retained is greater than the retention period.

单选题
To clean up old records that are in a Flashback Data Archive and are past the retention period, what must the DBA do?()
A

 TRUNCATE the archive table.

B

 DROP the Flashback Data Archive.

C

 Nothing;expired rows are automatically removed.

D

 Nothing;expired rows are moved to an archive table.

E

 Delete entries from the archive where the metadata date retained is greater than the retention period.


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多选题Which two are the prerequisites to enable Flashback Data Archive?() (Choose two.)ADatabase must be running in archivelog mode.BAutomatic undo management must be enabled.CUndo retention guarantee must be enabled.DThe tablespace on which the Flashback Data Archive is created must be managed with Automatic Segment Space Management (ASSM).

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