Thanks Jared ! What I read makes a lot of sense- But what suprises me is -
that I haven't come across anyone really using Reverse key indexes for
Synthetic (surrogate Primary keys).
Have you ?
vikas
-----Original Message-----
Sent: Friday, May 11, 2001 11:42 PM
To: [EMAIL PROTECTED]; Vikas Kawatra
Rather than re-invent the wheel, I'll let Steve Adams explain it.
Besides, his explanation is better than the one I was going to give. :)
http://www.ixora.com.au/tips/design/synthetic_keys.htm
Jared
On Friday 11 May 2001 23:55, Vikas Kawatra wrote:
> Reverse key indexes are good for columns populated by sequence no's
> Does that mean that for surrogate Primary key's on OLTP systems - which
are
> populated by sequences - performance could be enhanced by creation reverse
> key indexes - rather than using the B*Tree unique indexes which are
> automatically created by Oracle.
>
> vikas
--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: Vikas Kawatra
INET: [EMAIL PROTECTED]
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: [EMAIL PROTECTED] (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).