13.3. Recovery Terminology
Depending on the type of backups that you take, there are different methods that you can use to recover your database in the event of an error. In addition, the configuration you choose for your database will determine whether you can use the database logs to reapply transactions that might otherwise be lost if you need to restore your database from a backup.
13.3.1. Logging Methods Versus Recovery Methods
Circular logging supports only crash and version recovery. Archival logging supports all types of recovery: crash, version, and roll forward.
13.3.2. Recoverable Versus Nonrecoverable Databases
Recoverable databases can be recovered using crash or roll forward recovery, and as discussed before, archival logging is ...
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