or other databases that have EF-enabled managed ADO.NET data providers: LINQ to SQL connects only to SQL Server 200x (Express or Compact). Another deciding factor is LINQ to SQL's one-to-one mapping ...

LINQ to SQL and Entity Framework (EF) are both object/relational mapping (O/RM) tools for .NET ... Feature LINQ to SQL Entity Framework/Entity Data Model Supported databases SQL Server 200x (Express, ...