Weak Entity
From: Peter Kwok\\ <peterkwok628_at_yahoo.com>
Date: Mon, 14 Oct 2002 00:05:31 +0800
Message-ID: <aoc55a$kdv$1_at_news.ctimail.com>
In ER diagram, should weak entity be related to strong entity in 1-N relationship?
i.e.
Correct:
Strong Entity----------(1)-Relate-(N)----------Weak Entity
Date: Mon, 14 Oct 2002 00:05:31 +0800
Message-ID: <aoc55a$kdv$1_at_news.ctimail.com>
In ER diagram, should weak entity be related to strong entity in 1-N relationship?
i.e.
Correct:
Strong Entity----------(1)-Relate-(N)----------Weak Entity
Wrong:
Strong Entity----------(M)-Relate-(N)----------Weak Entity
thanks//peter Received on Sun Oct 13 2002 - 18:05:31 CEST