RE: How to drop a datafile from a tablespace quickly

Scott - I agree with your advice. Could he take the bad datafile offline to prevent Oracle from writing to it (until he rebuilds the table)? Would that cause any other problems that I am overlooking? Dennis Williams
DBA
Lifetouch, Inc.
dwilliams_at_lifetouch.com

-----Original Message-----
[mailto:Scott.Shafer_at_dcpds.cpms.osd.mil] Sent: Wednesday, May 15, 2002 12:33 PM
To: Multiple recipients of list ORACLE-L

No. Get some downtime, quickly(!) before data does get written to that file. Go through the export/drop tablespace/recreate. BTW, do you know _why_ the file header is corrupted? Is there a disk hardware problem? You are gonna have downtime sooner or later. Tell damagement to get over it.

Scott Shafer
San Antonio, TX
210-581-6217

> -----Original Message-----
> From: Xie, Tom [SMTP:TXie_at_taylorpub.com]
> Sent: Wednesday, May 15, 2002 11:58 AM
> To: Multiple recipients of list ORACLE-L
> Subject: How to drop a datafile from a tablespace quickly
>
> Dear gurus:
>
> I just added a data file to a big tablespace (11GB) that has only one
> table. Unfortunately, when it was being backed up, the file head head
> corrupted. I don't have any backup of this file. I found that there is
> no data in this file yet. So I want to drop the file from the
> tablespace. As I know, to drop a data file, I have to export the data,
> drop the tablespace and recreate it, and then import data back to
> the tablespace. However, since our users can't stop using the table,
> I won't have enough down time to do that.
>
> Is there anyway I can quickly drop a data file from a tablespace?
>
> Don't tell me using "alter database datafile '...' offline drop" command.
> It won't work.
>
> I am working on Oracle 7.3.4.
>
> Thanks,
>
> Tom Xie
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Xie, Tom
> INET: TXie_at_taylorpub.com
>
> Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
> San Diego, California -- Public Internet access / Mailing Lists
> --------------------------------------------------------------------
> To REMOVE yourself from this mailing list, send an E-Mail message
> to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
> the message BODY, include a line containing: UNSUB ORACLE-L
> (or the name of mailing list you want to be removed from). You may
> also send the HELP command for other information (like subscribing).

-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: 
  INET: Scott.Shafer_at_dcpds.cpms.osd.mil

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L
(or the name of mailing list you want to be removed from).  You may
also send the HELP command for other information (like subscribing).
-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: DENNIS WILLIAMS
  INET: DWILLIAMS_at_LIFETOUCH.COM

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L
(or the name of mailing list you want to be removed from).  You may
also send the HELP command for other information (like subscribing).