Re: Question about relationship and composite pk
From: Jan Hidders <hidders_at_REMOVE.THIS.win.tue.nl>
Date: 20 Mar 2001 08:14:47 GMT
Message-ID: <9973hn$h6f$1_at_news.tue.nl>
Date: 20 Mar 2001 08:14:47 GMT
Message-ID: <9973hn$h6f$1_at_news.tue.nl>
For example: John Smith wrote:
>
> Is it possible for a 1 to many relationship to have (1,1) Cardinality on
> both sides of the relationship?
No, that is by definition impossible; a relationship with an upperbound of one on the cardinality on both sides is by definition a 1 to 1 relationship.
-- Jan HiddersReceived on Tue Mar 20 2001 - 09:14:47 CET