To back up your database means to make copies of your data files, control file, and archived redo log files (if your database runs in
ARCHIVELOG mode). Restoring a database means copying the physical files that comprise the database from a backup medium, typically disk or tape, to their original or to new locations. Database recovery is the process of updating database files restored from a backup with the changes made to the database after the backup by applying incremental backups and redo logs to the restored files.
This section contains the following topics: