Tuesday, November 6, 2012

Recover datafile after physical loss.

I've created a test environment where I'll show you, how to recover datafile after physical loss.

Below are the steps which I've simulated for testing purpose.

1.Create a tablespace.
2.Take the full database backup including archivelogs.
3.Remove the datafile from os level.
4.Open the database in mount state.
5.Re-create the deleted datafile and make it offline.
6.Through RMAN restore that datafile.
7.recover the datafile from sql prompt.
8.Online that datafile.
9.Open the database.



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