Re: strange issue with setting transaction

Sergei,

My first guess will be you are using a loop and you are committing intermittently. If so, then the rollback segment used is not RBIG20. Any time a commit or rollback occurs, you are starting new transaction and hence a new rollback segment may be allocated; in this case it's R27.

The second guess is you are using some autonomous transaction in a trigger on the table.

Third guess (although not likely) is you are using a construct like update TAB1 set COL1 = function(COL1) where COL1 = <some value> If so, then you rollback segment has to be much bigger to make the read consistency view possible.

HTH Arup Nanda
----- Original Message -----
To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Friday, January 03, 2003 2:49 PM

> I am running 8.1.6 on solaris 2.8.
>
> Before running a large update, I tried to set a specific rollback
> segment by:
> Set transaction use rollback segment RBIG20;
>
> The transaction runs for a while and fails with:
>
> ORA-01555: snapshot too old: rollback segment number 29 with name "R27"
> too
> Small
>
> Any idea?
>
> Thank you
>
> Sergei
>
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.net
> --
> Author: Sergei
> INET: sergei_at_netflip.com
>
> Fat City Network Services -- 858-538-5051 http://www.fatcity.com
> San Diego, California -- Mailing list and web hosting services
> ---------------------------------------------------------------------
> 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.net
-- 
Author: Arup Nanda
  INET: arupnanda_at_hotmail.com

Fat City Network Services    -- 858-538-5051 http://www.fatcity.com
San Diego, California        -- Mailing list and web hosting services
---------------------------------------------------------------------
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).