Re: Unique??

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Article #15048

#15048

From: Morten Holst
Date: Mon, 23 Jul 2001 20:22

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hehe skrev i meddelelsen <9jhbmm$hc9$1@news.cybercity.dk>...
>Hvad betyder det som en attribut p� et felt i en tabel??
>
>Betyder det at der ikke kan v�re andre felter med det samme v�rdi??
>
ja, l�s:

http://sqlcourse.com/create.html

"For example, a "unique" constraint specifies that no two records can have
the same value in a particular column. They must all be unique."

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From: "Morten Holst" <morten@dk.northsails.com>
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Subject: Re: Unique??
Date: Mon, 23 Jul 2001 22:22:26 +0200
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