Backup and Recovery › Database Backup and Recovery Overview

Database Backup and Recovery Overview

Protects Your Data

Database backup and recovery are maintenance tasks that protect the changes made to your database:

• Backup is a routine database maintenance task that produces a copy of the database. If necessary, this backup copy can be used to restore lost data.
• Recovery restores the contents of the database when an error occurs that corrupts the database or disk journal file. Recovery procedures restore altered areas to their original state.

Types of Recovery

Under the central version, recovery occurs automatically with no intervention from the DBA. If automatic recovery fails you must recover the database manually. You must also recover the database manually for local mode update jobs that terminate abnormally.