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Enabling Flashback Database tips Oracle Tips by Burleson

Oracle 10g Enabling Flashback Database

You can enable Flashback Database using the following steps:

1. Make sure the database is in archive mode.
    

2. Configure the recovery area by setting the two parameters:

• db_recovery_file_dest
   

• db_recovery_file_dest_size

3. Open the database in MOUNT EXCLUSIVE mode and turn on the flashback feature:

SQL> STARTUP MOUNT EXCLUSIVE;
SQL> ALTER DATABASE FLASHBACK ON;

4. Set the Flashback Database retention target:

 db_flashback_retention_target

5. Determine if Flashback Database is enabled:

SQL> select flashback_on
      2  from   v$database;

           FLASHBACK_ON
           ------------
           YES