RE: rollback use query

Right. I knew that part too, and I'm feeling much better now. I was beginning to get a queasy uneasy feeling there, where your world spins out of focus type thing. :-)

Thanks, Anita.

> -----Original Message-----
> From: A. Bardeen [mailto:abardeen1_at_yahoo.com]
> Sent: Tuesday, June 12, 2001 2:02 PM
> To: Multiple recipients of list ORACLE-L
> Subject: RE: rollback use query
>
>
> Kirti and Yosi,
>
> > It's a good idea to not argue with Anita! :)
> Oh puhleeze!! Argue with me all you want,
> especially when I'm wrong. I'm a big girl, I can take
> it ;) Now if you want to convince my boyfriend not to
> argue with me, be my guest!
>
> You're both correct and I should have been more
> specific in my response. The rollback generated is
> due to the dd changes for creating the new table and
> extent allocation, so it's no where near the amount
> used for the equivalent create table and conventional
> inserts. It's not exclusively DDL, though as it does
> require a non-system RBS, whereas a simple create
> table statement doesn't.
>
> -- Anita
>
> --- "Deshpande, Kirti" <kirti.deshpande_at_verizon.com>
> wrote:
> > Hi Yosi,
> > It's a good idea to not argue with Anita! :)
> > Just do a simple test to confirm. Monitor 'writes'
> > in v$rollstat before and
> > after running the CTAS. Good, if you have a test db
> > and no one but you are
> > the sole user.
> > You will never ever forget what you find.
> > Just do it!
> > :)
> >
> > Regards,
> >
> > - Kirti Deshpande
> > Verizon Information Services
> > http://www.superpages.com
> >
> > > -----Original Message-----
> > > From: Yosi_at_comhill.com [SMTP:Yosi_at_comhill.com]
> > > Sent: Monday, June 11, 2001 4:20 PM
> > > To: Multiple recipients of list ORACLE-L
> > > Subject: RE: rollback use query
> > >
> > > I'd hate to argue with Anita, but I'm pretty sure
> > that rollback
> > > won't be used on CTAS, since it's ddl.
> > >
> > > Somebody verify or correct please?
> > >
> > > Thanx,
> > >
> > > Yosi
> > >
> > >
> > > > -----Original Message-----
> > > > From: Seema Singh
> > [mailto:oracledbam_at_hotmail.com]
> > > > Sent: Monday, June 11, 2001 1:21 PM
> > > > To: Multiple recipients of list ORACLE-L
> > > > Subject: rollback use query
> > > >
> > > >
> > > > Hi Gurus
> > > > I have one question.
> > > > Create table tbl2 as select * from tbl1;
> > > > will above query use the rollback segment or
> > not? and why?
> > > > Thx
> > > > -Seema
> > > >
> > >
> > --
> > Please see the official ORACLE-L FAQ:
> > http://www.orafaq.com
> > --
> > Author: Deshpande, Kirti
> > INET: kirti.deshpande_at_verizon.com
> >
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> Please see the official ORACLE-L FAQ: http://www.orafaq.com
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> Author: A. Bardeen
> INET: abardeen1_at_yahoo.com
>
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: 
  INET: Yosi_at_comhill.com

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
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