Is this recovery method valid?  The loss of controlfiles is supposed to be
recovered using the trace file generated from a previous BACKUP CONTROLFILE
TO TRACE, isn't it?  At least according to the Oracle8 Backup and Recovery
class it is.

The part that concerns me is that you are recovering using an ONLINE redo
log (don't know if it was the active one or not).  Could be the paranoid in
me, but that just doesn't seem right.  The admission that "I don't think
this is 100% true for every situation" would seem to suggest that you agree
that this method shouldn't be used for backup/recovery on production
databases.

My $.02.

Rich Jesse                          System/Database Administrator
[EMAIL PROTECTED]             Quad/Tech International, Sussex, WI USA

-----Original Message-----
Sent: Friday, October 26, 2001 08:30
To: Multiple recipients of list ORACLE-L


Tim,

> You can not simply cancel a "recover
> database using backup
> controlfile" since Oracle is expecting you perform a
> complete recovery (
> since your not using the UNTIL CANCEL/TIME/CHANGE )
> and canceling a complete
> recovery leaves the stop SCN in the controlfile at
> infinity...  Therefore,
> the recovery is never complete and you will always
> receive the "needs media
> recovery message"...  

I don't think this is 100% true for every situation. 
I am no recovery expert, but I just did this the other
day, and to verify it, I ran the test again this
morning.  

1.  Shutdown abort
2.  Delete all current controlfiles
3.  Replaced the binary controlfiles from last hot
backup (they were copied as part of the backup script)
4.  Startup mount
5.  Recover database using backup controlfile
6.  Kept applying logs - only trick was that the last
log was an online redo log, so I had to type in that
log explicitly.  There I received the message Media
Recover Complete.
7.  Alter database open resetlogs.

Rob Pegram
Oracle Certified DBA
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Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Jesse, Rich
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