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From Bernie Huang
Subject constraint
Date
Msg-id 3932A73C.6FF32AAB@ec.gc.ca
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Responses Re: constraint  (JanWieck@t-online.de (Jan Wieck))
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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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