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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Received on Tue Jun 12 2001 - 12:32:16 CDT
