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WCF 4.5 Multi-Layer Services Development with Entity Framework by Mike Liu

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Chapter 7. LINQ to Entities: Basic Concepts and Features

In the previous chapter, we learned a few features related to LINQ. In the next two chapters, we will learn how to use LINQ to query a database, or in other words, how to use LINQ to Entities in C#. After reading these two chapters, we will have a good understanding of LINQ to Entities so that we can rewrite the data access layer of our WCF Service with LINQ to Entities, to securely and reliably communicate with the underlying database.

In this chapter, we will cover the basic concepts and features of LINQ to Entities:

  • What is an ORM?
  • What is LINQ to Entities?
  • What is LINQ to SQL?
  • Comparing LINQ to Entities with LINQ to Objects and LINQ to SQL
  • Modeling the Northwind database with LINQ to Entities ...

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