Oracle FAQ Your Portal to the Oracle Knowledge Grid
HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US
 

Home -> Community -> Mailing Lists -> Oracle-L -> Re: Row Migration

Re: Row Migration

From: Rachel Carmichael <wisernet100_at_yahoo.com>
Date: Fri, 27 Dec 2002 20:28:50 -0800
Message-ID: <F001.005238D9.20021227202850@fatcity.com>


don't feel too sheepish, I didn't know it either. Larry is the SQL guru and I bow to his knowledge. and had already saved off this email as this sort of update is something we do often and I ALWAYS have problems figuring out the correct SQL :)

rachel
--- Jared Still <jkstill_at_cybcon.com> wrote:
>
> Geez, I didn't know you could do that.
>
> Sheepishly,
>
> Jared
>
> On Friday 27 December 2002 03:38, Larry Elkins wrote:
> > Someone asked in a back channel email if parallelism is used. The
> select
> > portion of the update statement uses parallelism (though the
> updates
> > themselves get serialized) through the use of an in-line join
> update (to
> > avoid the second sub-query commonly used to constrain the rows
> being
> > updated):
> >
> > Update (Select /*+ parallel hints */ ....
> > From a,b
> > Where a.key = b.key)
> > Set a.col1 = b.col1,
> > a.col2 = b.col2
> > .....
> >
> > Regards,
> >
> > Larry G. Elkins
> > elkinsl_at_flash.net
> > 214.954.1781
> >
> > > -----Original Message-----
> > > From: root_at_fatcity.com [mailto:root_at_fatcity.com]On Behalf Of
> Larry
> > > Elkins
> > > Sent: Thursday, December 26, 2002 6:09 PM
> > > To: Multiple recipients of list ORACLE-L
> > > Subject: Row Migration
> > >
> > >
> > > Listers,
> > >
> > > 8.1.7.4 64 Bit Solaris
> > >
> > > Does row migration utilize DB File Sequential Reads on the table?
> Off the
> > > top of my head I would expect so, but I've never tested something
> > > like that
> > > before.
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.net
> --
> Author: Jared Still
> INET: jkstill_at_cybcon.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).
>



Do you Yahoo!?
Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com
-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: Rachel Carmichael
  INET: wisernet100_at_yahoo.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).
Received on Fri Dec 27 2002 - 22:28:50 CST

Original text of this message

HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US