Re: On Formal IS-A definition
From: Nilone <reaanb_at_gmail.com>
Date: Tue, 4 May 2010 01:49:55 -0700 (PDT)
Message-ID: <689ab4ae-2233-402c-b211-efd34eb47d5e_at_37g2000yqm.googlegroups.com>
Date: Tue, 4 May 2010 01:49:55 -0700 (PDT)
Message-ID: <689ab4ae-2233-402c-b211-efd34eb47d5e_at_37g2000yqm.googlegroups.com>
On May 3, 11:49 pm, r..._at_raampje.lan (Reinier Post) wrote:
> Tegiri Nenashi wrote:
> >Perhaps you are not comfortable with the idea than more than one tuple
> >of Carnivores2 might represent each "entity"?
>
> That's what I wrote, didn't I? It's strange. It's very unusual.
> It doesn't fit in with ER modelling, for instance.
Perhaps we should name the relvar CarnivoreEatsAnimal? It would correspond to the Eats relationship between Carnivore and Animal entities in the ER model. Received on Tue May 04 2010 - 10:49:55 CEST