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RE: Urgent: restore from hot backup w/o archivelogs

From: Babette Turner-Underwood <>
Date: Fri, 28 Mar 2003 20:28:35 -0800
Message-ID: <>

Well.... If you don't mind possibly destroying the database you are trying to restore, you can use:

alter session set events 'IMMEDIATE trace name ADJUST_SCN level 1';

We had a strange failure / recovery situation and I was given this command. The description posted in the TAR was:

"A data block SCN is ahead of the current SCN. The ORA-600 [2662] occurs when an SCN is compared to the dependent SCN (which is stored in a UGA variable). If the SCN is strictly less than the dependent SCN, then we signal the ORA-600 [2662] internal error, and print out the SCN, the dependent SCN, and the dependent SCN block."

I later used it in another case, where the Sys Admin had restored the wrong version or combination of files and used level 100 instead of 1 to do a bigger increase. This was on a test instance and I didn't want to rebuild if I had a way around in the meantime.

-----Original Message-----
Sent: Thursday, March 27, 2003 10:09 AM
To: Multiple recipients of list ORACLE-L


My mind seems to have stopped working now. Can you do an ALTER DATABASE OPEN RESETLOGS if log switches have occurred and some of the database files have been updated between the first ALTER TABLESPACE <tbs1> BEGIN BACKUP and the last ALTER TABLESPACE <tbsN> END BACKUP wouldn't you get

   ORA-01194: file 1 needs more recovery to be consistent Do you issue an ALTER DATABASE OPEN RESETLOGS without even attempting a RECOVER DATABASE UNTIL CANCEL ?

Or does it work if *ALL* the Tablespaces are put in BACKUP mode and the hot backup is
provided to you without archive logs, irrespective of the number of archive logs generated
and NOT work if the Tablespaces are in BACKUP mode sequentially ?


At 11:14 AM 26-03-03 -0800, you wrote:
>Well thanx a lot, Rachel and Jose.
>At 12 midnight the mind seems to have stopped working
>-----Original Message-----
>Sent: Thursday, March 27, 2003 12:21 AM
>To: Multiple recipients of list ORACLE-L
>alter database open resetlogs;
>you won't be able to apply the archived logs he sends over later on
>(yes Jeremiah I know there is a way to recover through a resetlogs but
>they will be doing work against the database in the interim!)
>but if data loss is not a problem, that's the way to go
>--- Naveen Nahata <> wrote:
> > I have got a set of datafiles backed up from the client but he didn't
> > send me
> > the required archive logs
> >
> > now for testing purpose we need to get the DB up at our site but the
> > archive
> > logs are not there, the client will send the same but it will take
> > time
> >
> > Is there any way to get the DB up without applying the archive logs
> >
> >
> > Regards
> > Naveen
> >
> >

Please see the official ORACLE-L FAQ:
Author: Babette Turner-Underwood

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Received on Fri Mar 28 2003 - 22:28:35 CST

Original text of this message