Experience: is what you get soon after you need it.

Experience: is what you get soon after you need it.

****************I am authoring a Book on Oracle Database Cloud Services.......More details to follow.***************

Title : Oracle Database Cloud Revealed
Publisher : Apress
Release Date : Jan-2019

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Friday, April 9, 2010

Full Backup Vs Incremental

The only difference between a level 0 incremental backup and a full backup is that a
full backup is never included in an incremental strategy. Thus, an incremental level 0 is
a full backup that happens to be the parent of incremental backups whose level is
greater than 0.
A level 1 incremental backup can be either of the following types:
■ A differential incremental backup, which backs up all blocks changed after the
most recent incremental backup at level 1 or 0
■ A cumulative incremental backup, which backs up all blocks changed after the
most recent incremental backup at level 0
Incremental backups are differential by default.

Note: Cumulative backups are preferable to differential backups
when recovery time is more important than disk space, because
fewer incremental backups need to be applied during recovery.

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