TIP #14: Difference between full backup and level 0 incremental backup

I asked many times what the difference between full backup and level 0 incremental backup is.Whether or not they are the same and ...
Incremental level 0 backup which is the base for subsequent incremental backup copies all blocks containing data same as full backup. (Same functionality)
The only difference between these two backups is that a full backup never considered as base backup in incremental strategy.
Therefore, if you select incremental strategy as part of your backup strategy, you need at least one level 0 incremental backup.

1 comment:

LanelleEllisKylie said...

A level 0 incremental backup is physically identical to a full backup. The only difference is that the level 0 backup is recorded as an incremental backup in the RMAN repository, so it can be used as the parent for a level 1 backup.A full backup can never be part incremental backup strategy i.e it cannot be the parent for a subsequent incremental backup