----- Original Message -----
From: "Helen Borrie" <helebor@...>
To: <ib-support@yahoogroups.com>
Sent: Tuesday, February 12, 2002 11:52 PM
Subject: Re: [ib-support] Advice


> It won't cost you much to add Birth_Month and Birth_DOW smallint columns
to your table, and populate them with triggers using extract() on the
incoming new.Date_birth. You can index both columns and search them very
fast, either together or separately.
>


Thank you a lot, Helen and to the others that answered me.

Luiz.