DB Model vs. ER Model

A

Ali

What is the difference between a "Database Model Diagram"
and an "ER Source Model" - I mean if every thing is
available in a "Database Model Diagram", why do we have a
need for an "ER Source Model".

Regards,
Ali.
 
R

RA

You can think of the ER Source model as a Logical model rather than a
Physical model.
Also you can have many ER Source models built into a single Database Model
diagram
 

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.

Ask a Question

Top