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May 05, 2011 06:27 PM|LINK
This is not really a valid question. There is no LINQ vs EF. LINQ is a framework for querying collections, which includes EF (LINQ to Entities), but also includes LINQ to SQL, LINQ to Objects, LINQ to XML, etc, etc
Entity Framework is an ORM framework for working with databases.
So the short answer is, you should study both.