Recovery is the rebuilding of a database or table space after a problem such as media or storage failure, power interruption, or application failure. If you have backed up your database, or individual table spaces, you can rebuild them should they become damaged or corrupted in some way.

Recovery is the rebuilding of a database or table space after a problem such as media or storage failure, power interruption, or application failure. If you have backed up your database, or individual table spaces, you can rebuild them should they become damaged or corrupted in some way.

Reconstructing a database, typically to prevent data loss, but could also be done to provide data that is no longer available or for redundancy/replication purposes. This is one of the primary responsibilities of a DBA (though not frequent) and one they must do correctly.