Why doesn’t Entity Framework support ODBC?

The Entity Framework doesn’t require new data providers, exactly. Rather, it requires Entity Framework providers which extend existing data providers, to provide additional services required by the Entity Framework, such as complex SQL generation, which are not part of the existing ADO.NET data model. I don’t think that there’s anything stopping anyone from writing an Entity Framework provider for ODBC based on the existing ADO.NET 2.0 ODBC bridge. You can download the source code for a sample SQL Server provider for more information about exactly what services are required when extending an existing ADO.NET provider for the Entity Framework.

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