RE: what is the main purpose of cloning a database.
Date: Wed, 17 Dec 2008 12:09:42 -0600
I've also used db cloning to get a copy of the data at a previous point in time (when flashback is not available, of course).
Guillermo Alan Bort
DBA / DBA Main Team
EDS, an HP company
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of dave Sent: Wednesday, December 17, 2008 3:44 PM To: oracledba.williams_at_gmail.com
Cc: JEREMY.SHEEHAN_at_fpl.com; dofreeman_at_state.pa.us; ORACLE-L Subject: Re: what is the main purpose of cloning a database.
Like others have mentioned, cloning provides you with the ability to take a copy of a production environment and use it for development, testing patches and configuration changes before you make them into production, etc.
There are a couple of ways to clone a database but the easiest is to use RMANs duplicate feature. Its very easy to automate a clone and I even have some databases which are refreshed nightly with a copy of production.
On 12/17/08, Dennis Williams <oracledba.williams_at_gmail.com> wrote:
> 1. Some databases are so large that cloning is the only method of
> test database.
> 2. Before a production change is made, it is recommended that change
> in a test database and then tested. This can avoid the awkward
> production changes that need to be backed out. Cloning produces an
> copy of the production database.
> Dennis Williams