Re: MV Keys

From: Jon Heggland <>
Date: Thu, 2 Mar 2006 17:16:49 +0100
Message-ID: <>

In article <iJDNf.676$ZL1.483_at_trndny09>, says...
> Is a"tuple valued attribute" the same thing as a "relation valued
> attribute, constrained to a cardinality of one"?

Is a character the same thing as a string, constrained to a length of 1? Is any kind of value the same thing as a constrained vector of such values? Is a vector a constrained matrix? Why do you ask?

Received on Thu Mar 02 2006 - 17:16:49 CET

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