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Message from discussion Changing DBID
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Chuck  
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 More options Jul 10 2008, 2:09 pm
Newsgroups: comp.databases.oracle.server
From: Chuck <chuckh1958_nos...@gmail.com>
Date: Thu, 10 Jul 2008 18:09:11 GMT
Local: Thurs, Jul 10 2008 2:09 pm
Subject: Re: Changing DBID
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joel garry wrote:
>> Not the same as the source of the copy, but I want the destination of
>> the copy to have the same DBID after the duplication as it had before.

> That is a strange want, as you are saying you want to restore backups
> that cannot apply.  If you are duping from another db, why do you
> think you should be able to use backups from before the dupe?
> Recovery is based on transactions.  The transactional chain is broken
> as far as those backups are concerned.

And why can't I apply them? Anything in the rman catalog can be restored
even after a dupe. I'd just be restoring to a point in time before the
dupe. As stated in an earlier posting in this thread, this is a TEST
database and only gets cold backups. No recovery would be necessary.

In my specific case I have no intentions of ever restoring the old
backups. I just want to delete them with a "delete obsolete" command.
But since duplication changes the dbid, "delete obsolete" will not work
on those pre-duplication backups and they sit forever in both the rman
catalog and the MML.


 
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