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Mod_date update technique

From: "Gary Hoffman" <ghoffman(at)ucsd(dot)edu>
To: pgsql-php(at)postgresql(dot)org
Subject: Mod_date update technique
Date: 2004-08-26 05:16:04
Message-ID: fc.00249f0e00f7ab7700249f0e00f7ab77.f7abac@irpsmail.ucsd.edu (view raw or flat)
Thread:
Lists: pgsql-php
I have a column named mod_date on a particular table. It has a default
value of now() which is the create date of the row. However, I want to
update that field with the current timestamp whenever its record is
updated. 

I know how to do this using PHP by including the date() in the data I'm
using to update the record. However, I would like to do this on the
PostgreSQL side of the transaction. I can't figure out how to write a
trigger or other technique to do this.

Simply asked: What is the easiest way to automatically update the mod_date
field when the record is updated?

Gary

**************************************************************************
* Gary B. Hoffman, Computing Services Manager  e-mail: ghoffman(at)ucsd(dot)edu *
* Graduate School of International Relations and Pacific Studies (IR/PS) *
* University of California, San Diego (UCSD)       voice: (858) 534-1989 *
* 9500 Gilman Dr.  MC 0519                           fax: (858) 534-3939 *
* La Jolla, CA 92093-0519 USA                 web: http://irps.ucsd.edu/ *
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Responses

pgsql-php by date

Next:From: Justin WyerDate: 2004-08-26 06:52:03
Subject: Re: Mod_date update technique
Previous:From: Majolee InfoTech (Hotmail)Date: 2004-08-21 14:10:12
Subject: Dynamic Record Type Field Names

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