RE: ROLLBACK SEGMENT?

I think one should not be running export of those tables when heavy DML is being done against those.

• Kirti

-----Original Message-----
Sent: Wednesday, January 23, 2002 3:11 AM To: Multiple recipients of list ORACLE-L

If you want to avoid snapshot too old set the DB (or tablespaces) to read-only.

Yechiel Adar, Mehish Computer Services
adary_at_mehish.co.il

> -----Original Message-----
> From: Rajesh.Rao_at_chase.com [SMTP:Rajesh.Rao_at_chase.com]
> Sent: Wed, January 23, 2002 2:00 AM
> To: Multiple recipients of list ORACLE-L
> Subject: Re: ROLLBACK SEGMENT?
>
>
> Hmmmm ... "COULD" help in avoiding snapshot too old errors.
>
> Raj
>
>
>
>
> Jeremiah Wilton <jwilton_at_speakeasy.net>@fatcity.com on 01/22/2002 06:35:21
> PM
>
> Please respond to ORACLE-L_at_fatcity.com
>
>
>
> Sent by: root_at_fatcity.com
>
>
> To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
> cc:
>
>
> On Tue, 22 Jan 2002, Jason Rowski wrote:
>
> > ... you can use the following trick to assign export a
> > particular rollback segment -
> >
> > 1) Create a rollback segment tablespace with one large
> > segment and bring it online before export.
> > 2) Offline all existing rollback segments.
> > 3) Export the database
> > 4) Offline the large tablespace created earlier.
> > 5) Bring back the orginals rollback segments online.
>
> So what does it accomplish to "assign export [to] a particular
> rollback segment?"
>
> Export doesn't generate any rollback, right, so what is it supposed to
> accomplish by doing this incantation?
>
> --
> Jeremiah Wilton
> http://www.speakeasy.net/~jwilton
>
> > --- Seema Singh <oracledbam_at_hotmail.com> wrote:
> > > Can I use one rollback segment at time of export?Is
> > > yes,then
> > > SET TRANSACTION USE ROLLBACK SEGMENT
> > > rollbacksegmentname;
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
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> Author: Jeremiah Wilton
> INET: jwilton_at_speakeasy.net
>
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> INET: Rajesh.Rao_at_chase.com
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Author: Deshpande, Kirti
  INET: kirti.deshpande_at_verizon.com

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