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WCF 4.0 Multi-tier Services Development with LINQ to Entities

You're reading from   WCF 4.0 Multi-tier Services Development with LINQ to Entities Build SOA applications on the Microsoft platform with this hands-on guide updated for VS2010

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Product type Paperback
Published in Jun 2010
Publisher Packt
ISBN-13 9781849681148
Length 348 pages
Edition 1st Edition
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Author (1):
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Mike Liu Mike Liu
Author Profile Icon Mike Liu
Mike Liu
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Table of Contents (16) Chapters Close

WCF 4.0 Multi-tier Services Development with LINQ to Entities
Credits
About the Author
About the Reviewers
Preface
1. Introducing Web Services and Windows Communication Foundation 2. Implementing a Basic HelloWorld WCF Service FREE CHAPTER 3. Hosting and Debugging the HelloWorld WCF Service 4. Implementing a WCF Service in the Real World 5. Adding Database Support and Exception Handling to the RealNorthwind WCF Service 6. LINQ—Language Integrated Query 7. LINQ to Entities: Basic Concepts and Features 8. LINQ to Entities: Advanced Concepts and Features 9. Applying LINQ to Entities to a WCF Service 10. Distributed Transaction Support of WCF Index

ORM—Object-Relational Mapping


LINQ to Entities is considered to be one of Microsoft's new ORM products. So before we start explaining LINQ to Entities let us first understand what ORM is.

ORM stands for Object-Relational Mapping. Sometimes it is called O/RM or O/R mapping. It is a programming technique that contains a set of classes that map relational database entities to objects in a specific programming language.

Initially applications could call specified, native database APIs to communicate with a database. For example, Oracle Pro*C is a set of APIs supplied by Oracle to query, insert, update, or delete records in an Oracle database from C applications. The Pro*C pre-compiler translates embedded SQL into calls to the Oracle runtime library (SQLLIB).

Then ODBC (Open Database Connectivity) was developed to unify all of the communication protocols for various RDBMS. ODBC was designed to be independent of programming languages, database systems, and operating systems. So with ODBC, one application...

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