Re: E/R modeling: relationship's attributes
From: Sticky Bit <sticky_at_yahoo.com>
Date: Mon, 01 May 2006 21:41:26 +0200
Message-ID: <44566466$0$24880$ba620e4c_at_news.skynet.be>
Date: Mon, 01 May 2006 21:41:26 +0200
Message-ID: <44566466$0$24880$ba620e4c_at_news.skynet.be>
Thanks to all.
I've done some googling (among others I liked the explanations of CJ Date).
At the end, there is no strict boundary between an entity and a relationship: a relationship can become an entity if needed.
As for the usefulness of the E/R model, it may be a question of taste. I prefer to see the physical design of a database + some textual explanantions. Received on Mon May 01 2006 - 21:41:26 CEST