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Re: Relation Definition

From: Alfredo Novoa <alfredo_novoa_at_hotmail.com>
Date: Fri, 18 Feb 2005 09:01:05 +0100
Message-ID: <i58b111qsnr27qhorlp08dq4pqaqv5i0a0@4ax.com> 





On Thu, 17 Feb 2005 22:02:43 GMT, Jan Hidders
<jan.hidders_at_REMOVETHIS.pandora.be> wrote:



>Def. [Tuple] A *tuple* is a partial function that maps column names to 

>domain values and is defined for a finite set of column names which is 

>called its *header*.




In which way is "columnar" a tuple "column"?




Regards
Received on Fri Feb 18 2005 - 02:01:05 CST












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