Question

Can we create multiple entity framework in project for the same database?
I want to create entity framework for each subsystem. Some of subsystem have shared table.

Answer 1

It’s possible, and you can create multiple EDMX files as you wish.

But it’s not recommmended, as…

1. You can not query multiple tables in different models.
2. Defining boundary will be very difficult because mostly tables are connected through relationships.
3. If same table exists in multiple models, then you will have consistency issues and namespace clashes.

Instead, we created only one EDMX model and put it in a common library, which is then imported in many different sub projects.The only problem is, your connection string has to be defined correctly specifying common library resources.