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
>
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--
Please see the official ORACLE-L FAQ: http://www.orafaq.net
--
Author: Rachel Carmichael
INET: wisernet100_at_yahoo.com
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Received on Fri Dec 27 2002 - 22:28:50 CST
