ORA-38753: Cannot flashback data file string; no flashback
log data.

Answer Posted / guest

Cause: An attempt to perform a FLASHBACK DATABASE failed
because the file does not have enough flashback log data to
cover the time to flash back. Either the file did not have
flashback generation enabled for it, or had flashback
generation turned off for it some time during the time span
of the flashback.

Action: The file cannot be flashed back. The file must be
taken offline or the tablespace dropped before continuing
with the FLASHBACK DATABASE command.

Please add more information about this Error

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