| Oracle® Database Reference 11g Release 1 (11.1) Part Number B28320-01  | 
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V$FLASHBACK_DATABASE_STAT displays statistics for monitoring the I/O overhead of logging flashback data. This view also displays the estimated flashback space needed based on previous workloads.
| Column | Datatype | Description | 
|---|---|---|
BEGIN_TIME | 
DATE | 
Beginning of the time interval | 
END_TIME | 
DATE | 
End of the time interval | 
FLASHBACK_DATA | 
NUMBER | 
Number of bytes of flashback data written during the interval | 
DB_DATA | 
NUMBER | 
Number of bytes of database data read and written during the interval | 
REDO_DATA | 
NUMBER | 
Number of bytes of redo data written during the interval | 
ESTIMATED_FLASHBACK_SIZE | 
NUMBER | 
Value of ESTIMATED_FLASHBACK_SIZE in V$FLASHBACK_DATABASE_LOG at the end of the time interval |