Re: ER schema versus ER diagram

From: Tobin Harris <tobin_dont_you_spam_me_at_breathemail.net>
Date: Thu, 11 Dec 2003 22:59:23 -0000
Message-ID: <brasvb$1ebj2$1@ID-135366.news.uni-berlin.de>

"portroe" <portroe_at_nospam.com> wrote in message news:br9jco$asj$07$1_at_news.t-online.com...
>
>
> If I am asked to 'Design an ER schema for this application, and draw an
> ER diagram for that schema'

When I was studying, I recall that producing a schema entailed documenting:

Entity Names
Primary Keys
Foreign Keys

Producing an ER diagram then meant producing a diagram to represent this. Also, cardinality, optionality and dependencies would need to be shown in the diagram.

HTH Tobes Received on Thu Dec 11 2003 - 16:59:23 CST