Incremental or cumulative Export backup Oracle

Haidar1
Haidar1 used Ask the Experts™
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Hi Experts
Which backup type I should use (incremental  or  complete or  cumulative) for the following case?
For instance I have oracle database with 10 tables no changes will happened to this tables except only one table data only will be grown in daily basis.
What shall I select incremental or cumulative if I want to export only the data changed?
With example please?However I did the following script to make full export once daily

exp \"/@test1 as sysdba\" FILE=e:\jtest\test1.dmp LOG=e:\jtest\test1INCR.log FULL=Y ROWS=Y COMPRESS=Y STATISTICS=NONE DIRECT=Y RECORDLENGTH=65535 INCTYPE=COMPLETE

Now I need to know how to perform either cumulative or incremental backup. Please with example?
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Commented:
You have to use RMAN to use incremental backups. Cumulative or Differential backups are types of incremental backups - ie they both back up data that has changed. The difference being Cumulative takes all changes since the last full backup while Differential takes all changes since the last incremental backup. What you need depends on how much data is changing, but most importantly how long you can afford to wait to perform a restore.

NOTE that using exp is not usable by RMAN's incremental backup schemes. You have to take a level 0 backup via RMAN first.

Sorry but I'm not providing an example, I really really think you should read the doco and write your own code to understand this perfectly: http://download.oracle.com/docs/cd/E11882_01/backup.112/e10642/rcmquick.htm#BRADV89353
Docteur_ZDatabase Engineer
Commented:
Remember export is NOT a BACKUP !

exp utility's INCTYPE parameter :
Specifies the type of incremental export. Options are COMPLETE, CUMULATIVE, and INCREMENTAL.

I never tried that thing, but look at http://www.orafaq.com/wiki/Export
I'm not sure exp with INCTYPE really fits your needs.
Most Valuable Expert 2012
Distinguished Expert 2018
Commented:
>>Remember export is NOT a BACKUP !

It can be in certain situations.



It also appears INCTYPE is obsolete as far back as 9i.

What version of Oracle are you running?

>>Now I need to know how to perform either cumulative or incremental backup. Please with example?
 
What type of 'backup' you need is determined by your specific situation and recovery requirements.

For example:  Using EXP as a 'backup' means you will need to create a new database, users, etc...  then IMP the data back in.

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Commented:
I will implement RMAN to do my backup.

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