On Wed, Mar 14, 2001 at 05:36:00PM +1100, Leonard Coonan wrote:
>
> Further to your comment, I have had considerable benefits by
> creating an index of both keys as well. So I define 3 indexes
> userid, usernum, userid&usernum.
One of those is redundant.
If you index (userid, usernum) and then (usernum), your bases are
covered. Creating a sinle index on (userid) is not necessary. The docs
will explain why...
Jeremy
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Jeremy D. Zawodny, <[EMAIL PROTECTED]>
Technical Yahoo - Yahoo Finance
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