From: Bernie Huang <bernie.huang@ec.gc.ca>
To: PGSQL-SQL <pgsql-sql@postgresql.org>
Subject: constraint
Date: Mon, 29 May 2000 10:22:05 -0700
Message-ID: <3932A73C.6FF32AAB@ec.gc.ca> (raw)
Hi,
I am a newbie to SQL. Could someone please explain why do I need a
contraint, and how do I use it in SQL? An example is needed. Thanks
- Bernie
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Subject: Re: constraint
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