With the releases of LINQ to SQL and the ADO.NET Entity Framework, developers now have two products from Microsoft designed to reduce the impedance mismatch that exists between the worlds of relational data and object-oriented programming. Each of these eliminates much of the plumbing code you would otherwise have to write to perform object persistence. However, incorporating these object relational mapping (ORM) technologies into a service-oriented application architecture presents a whole new set of challenges for the application developer. ...
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