RE: Reverse key indexes

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: ORACLE-L_at_fatcity.com; 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

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Author: Vikas Kawatra
  INET: VKawatra_at_innoventry.com

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