oracle_bkprvry_backup [My wiki]

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======Overview======
In oracle we have A LOT of backups :) So let's start.
First thing first, since Oracle is RDBMS we have couple standard backups types:

  * Physical - Physical Copy of the data (RMAN, datafile copy, snapshot, etc)
  * Logical - Logical represantion of data (expdp, csv, etc)

For Physical backups, we have also types of the data inside of the backups:

Physical:
  * Full
  * Incremental (Cummulative, Differential)

Physical backups, especially RMAN backups, provide us with a lot of different options like:
  * Compression
  * Encryption
  * Parallelism

These options are somhow available also with logical backup using expdp, however not to their full extend.

======Backup Process======
Let's start with the backup process, as before, we have different processes for physical and logical backup.

====Physical====
Physical backup in Oracle, mostly means RMAN backup. RMAN is the ONLY Oracle utility for Physical backup. RMAN is a client utility, so it needs to connect to the Oracle Instance in order to perform a backup.

=====Recovery=====
Recovery process can be summarized in the following matrix:

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