RE: Is it possible to add existing datafiles to an oracle database?

From: Josh Collier <>
Date: Mon, 28 Apr 2008 16:11:32 -0700
Message-ID: <578806DDE66A3A45916740EB73C6982A010168703BF5@M1EXCHANGE01.mmi.local>

Restore a good copy of the datafile from a backup and perform recovery

        as needed.

still no mention of

1. your db version
2. your os
3. the contents of your alert log when the system crashed.
4. your pfile contents
5. your control file statement.

your recovery would have been simple if you had a tested recovery strategy. Of the two words in the phrase "backup and recovery"; recovery is the more important.

Where you trying to resize the undo tablespace and hit control-c?

you could try putting the db in manual undo and starting it with the default rollback seg in the system tablespace.

From: [] On Behalf Of Jared Still Sent: Monday, April 28, 2008 2:40 PM
Subject: Re: Is it possible to add existing datafiles to an oracle database?

On Fri, Apr 25, 2008 at 6:31 AM, Srinivas Chintamani <<>> wrote:

Earlier when working with SQL Server, it was simple to backup / restore the db. Just take a backup, dump the backup file anywhere on the filesystem and point to SQL Server, where the backup file is at and it happily recovered the db, all in a few seconds.

Wonder why restoring an oracle db is such a pain ...

Comparing a tool you know to one you don't know is not really a fair comparison.

I'm somewhat familiar with backing up and restoring SQL Server and Oracle. Backing up an oracle database is more comparable to backing up an entire SQL Server instance, not a single SQL Server database.

Try this on SQL Server: set the log file to unlimited growth. Let the log fill the disk. Try reopening the database following that. It's a lot of fun.

No database is perfect. If you are responsible for backups of a database, the first thing you should make sure you can do is restore said backups.

Now that you've (hopefully) learned that lesson, perhaps someone can help you with your down database.

Further down in the thread it appears that the UNDO tbs is corrupt, correct?

IIRC there may be a way to open this db, though some corruption may occur.

Have you escalated the SR? This is not the same as setting a severity level.

Search for 'escalation' on MetaLink.


Jared Still
Certifiable Oracle DBA and Part Time Perl Evangelist

-- Received on Mon Apr 28 2008 - 18:11:32 CDT

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