trigger examples

From: Carolyn Lu Wong <carolyn(at)kss(dot)net(dot)au>
To: "pgsql-sql(at)postgresql(dot)org" <pgsql-sql(at)postgresql(dot)org>
Subject: trigger examples
Date: 2000-10-03 05:20:24
Message-ID: 39D96C98.9C7A6A55@kss.net.au
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I need to write a trigger to create a new record in log table if it's a
new record or if column A and B changes. Can someone give me an example
how to do this.

Are there any sites that gives trigger examples??

Thanks.

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