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RE: Which is faster??

From: Hillman, Alex <Alex.Hillman_at_usmint.treas.gov>
Date: Fri, 23 Mar 2001 11:50:16 -0800
Message-ID: <F001.002D6806.20010323110711@fatcity.com>

When inserting only rowid gows into rollback segment, so 1GB will be more then enough.

Alex Hillman

        -----Original Message-----
        From:   CC Harvest [SMTP:ccharvest_at_yahoo.com]
        Sent:   Friday, March 23, 2001 12:18 PM
        To:     Multiple recipients of list ORACLE-L
        Subject:        Re: Which is faster??

        Thank you all for the reply. Probbaly I need to do
        more test. My concern is that whether it's ok to do
        the buld insert of 9 million records(say 2.7GB) on a 1
        GB RBS? I think the RBS should also be at least 3GB,
        right?

        Thanks,

        Chris

        --- Connor McDonald <hamcdc_at_yahoo.co.uk> wrote:

> If you're on 8.0 or higher, try
>
> insert /*+ APPEND */
> into table
> select * from other_table;
>
> where "table" is defined as nologging. Then you
> won't
> hit either redo logs or rollback segments..Its the
> equivalent of a sqlldr direct load
>
> hth
> connor
>
> --- CC Harvest <ccharvest_at_yahoo.com> wrote: > I have
> the following scripts:
> >
> > insert into table
> > select * from table2
> > ;
> >
> > So if use the about bulk statement in my
> > application, and the table2 is big, say 10
> > million records, my concern is that it's
> > going to fail because of the possible rollback
> > segments failure. So then I have to use PL/SQL
> > to create a cursor and commit every 50000 records.
> > What's the disadvantage of this?Will it be much
> > slower
> > than a bulk insert?
> >
> > Can I do it another way: create a stored procedure
> > for this bulk insert, then pin this procedure in
> > memory, does it still have RBS problem?
> >
> > Anyone has similar experience?
> >
> > Thanks in Advance,
> >
> > Chris
> >
> >
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> > Author: CC Harvest
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> >
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> =====
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> "Some days you're the pigeon, some days you're the
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__________________________________________________ Do You Yahoo!? Get email at your own domain with Yahoo! Mail. http://personal.mail.yahoo.com/ -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: CC Harvest INET: ccharvest_at_yahoo.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).
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-- 
Author: Hillman, Alex
  INET: Alex.Hillman_at_usmint.treas.gov

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Received on Fri Mar 23 2001 - 13:50:16 CST

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