I\'m creating a rewrite of an existing application in EF Code First, but I need to import some of the data from the existing application\'s database. Here\'s the definition
I recently ran into this same issue. In my case, I was using SQL Server CE. Here's a link to my solution:
Inserting all rows of a DataTable into a SQL Server table, including Id values (scroll down to Edit 2)
This is basically Diego's solution #1 -- raw ADO.NET. It's not a great solution because you will need to customize the queries to account for any differences in databases, but hopefully it will help solve your problem for the moment.