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Re: many to many relationship

From: Bernard Peek <bap_at_shrdlu.com>
Date: Thu, 6 Mar 2003 10:49:30 +0000
Message-ID: <Q1P2KwI6eyZ+Ewp5@diamond9.demon.co.uk>


In message <7Ut9a.10601$Lq.823680_at_stones>, john <nospam_at_nospam.com> writes
>hi,
>
>why is it that a many to many relationship should be changed so that a one
>to many table links the two?

Logical data structures always use link-entities to break a many to many relationship into two or more simpler ones. It's usually worth taking a close look at link-entities because they often correspond to real-world entities that might otherwise be overlooked.

-- 
Bernard Peek
bap_at_shrdlu.com
www.diversebooks.com: SF & Computing book reviews and more.....

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Received on Thu Mar 06 2003 - 04:49:30 CST

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