Trasniti in natoWhen you enable Flashback Database, the database generates flashback logs in the fast recovery area. These logs are used to flash back the database to a specified time. During usual operation, the database occasionally logs images of data blocks to the flashback logs. The database automatically creates, deletes, and resizes flashback logs. So ...1911 slide hanging upFlashback Database setup in Oracle. Enable Flash back on : Starting from Oracle 11g R2 we don't have to bounce the Database for these effects to get affected. If you are using pre 11G R2, you have to re bounce your system for these settings to get affected. [[email protected] ~]$ sqlplus /"As sysdba".