Joining tables from two databases using entity framework

Question

I am working on an ASP.NET MVC 4 web application. I am using Entity Framework as the data access layer, using database first approach (.edmx file).

Curr

Answer 1

If you want to do it with a single database call you will have to create a View in the database that joins the 2 tables from separate db's. Once the view is created you can add it to EF as a single object, which you can manipulate further and Query off of. The view will basically be a table and it will be easily maintable and easy to bind to a strongly typed model

Another way ,similiar like you have posted, you can query separate .edmx files and then join them. Yes, there is 2 calls to the database but it shouldn't be that expensive and probably won't notice a difference.

using(var db = new MyEntities())
using (var db2 = new MyEntities2())
{
   var one = db.Table1.AsEnumerable();
   var two = db2.Table2.AsEnumerable(); 

   var result = from o in one
                join t in two on o.Id equals t.Id
                // blah blah

}