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These are the details about V$FLASHBACK_DATABASE_STAT:  SQL> DESC V$FLASHBACK_DATABASE_STAT Name Null? Type  ------------- -------- --------------  BEGIN_TIME DATE END_TIME DATE  FLASHBACK_DATA NUMBER  DB_DATA NUMBER REDO_DATA NUMBER  ESTIMATED_FLASHBACK_SIZE NUMBER  Which two statements regarding the V$FLASHBACK_DATABASE_STAT view are true? ()

发布日期:2020-04-10

These are the details about V$FLASHBACK_DATABASE_S...
A

BEGIN_TIME is the time at which Flashback logging is enabled.

B

END_TIME is the time at which the query is executed on the view.

C

REDO_DATA is the number of bytes of redo data written during the interval.

D

This view contains information about flashback data pertaining to the last 24 hours.

E

FLASHBACK_DATA is the amount of flashback data generated since the database was opened.

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