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Pro LINQ: Language Integrated Query in C# 2008
Release Date: November, 2007
LINQ is the project name for a set of extensions to the .NET Framework that provide a generic approach to querying data from different data sources. LINQ will premier in Visual Studio 2008, and will become the next must–have skill for .NET developers. For more information about LINQ, you can check out the author’s portal at www.LINQdev.com. Pro LINQ: Language Integrated Query in C# 2008 is all about code. Literally, this book starts with code and ends with code. In most books, the author shows the simplest example demonstrating how to use a method, but they so rarely show how to use the more complex prototypes. Pro LINQ: Language Integrated Query in C# 2008 is different. Demonstrating the overwhelming majority of LINQ operators and protoypes, it is a veritable treasury of LINQ examples. Rather than obscure the relevant LINQ principles in code examples by focusing on a demonstration application you have no interest in writing, Pro LINQ: Language Integrated Query in C# 2008 cuts right to the chase of each LINQ operator, method, or class. However, where complexity is necessary to truly demonstrate an issue, the examples are right there in the thick of it. For example, code samples demonstrating how to handle concurrency conflicts actually create concurrency conflicts so you can step through the code and see them unfold. Most books tell you about the simple stuff, while few books warn you of the pitfalls. Where Pro LINQ: Language Integrated Query in C# 2008 returns your investment is in the hours, and sometimes days, spent by the author determining why something may not work as expected. Sometimes this results in an innocent looking paragraph that may take you a minute to read and understand, but took days to research and explain. Face it, most technical books while informative, are dull. LINQ need not be dull. Written with a sense of humor, Pro LINQ: Language Integrated Query in C# 2008 will attempt to entertain you on your journey through the wonderland of LINQ and C# 2008. What you’ll learn How to leverage all the LINQ-relevant C# 2008 language features including extension methods, lambda expressions, anonymous data types, and partial methods. How to use LINQ to Objects to query in–memory data collections such as arrays, ArrayLists, and Lists to retrieve the data you want. Why some queries are deferred, how a deferred query can bite you, and how you can make deferred queries work for you. How to use LINQ to XML to revolutionize your creation, manipulation, and searching of XML data. How to query DataSets with LINQ to DataSet so you can co–exist with legacy code and use LINQ to query databases other than SQL Server. How to query Databases with LINQ to SQL, write your own entity classes, and understand how to handle concurrency conflicts. Who this book is for This book is written for the proficient C# developer, but you do not need to be up on all the latest C# features to understand the material.
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Posted by T Kent on 12/21/2007
This book provides a *very* comprehensive treatment of LINQ. It establishes the background and foundation for LINQ, and then describes in effective detail and with sound examples, the different facilities and uses for LINQ. I heartily recommend this book for anyone getting into the world of LINQ.
Code, Code, and then More Code... Excellent
Posted by T. Anderson on 1/1/2008
This book claims to be about code, code, and then more code. I completely agree with the author's claim, it is code from front to back.
The book covers every feature of Linq in great detail, but one of my favorite parts of the book is chapter on the C# 3.0 Language features and other parts of the book that show how to take advantage of the Linq language features in everyday application code.
The author goes into great detail in every part of the of the book. The author also has a great companion site that is being updated with the latest new features coming out, like LINQ to XSD.
The accompanying code is very usable and well organized.
The only thing lacking would not be a legitimate complaint, since the authors claim code level detail and not architectural level guidance, but I will mention it anyway. I would have like to have seen more guidance on architecture and how Linq fits into the big picture. That is not covered, but like I said, they didn't claim to, so I can't ding them. The point of the comment.... 2nd edition ...hint, hint.....
If you want to get into the guts of Linq, this book is definitely for you. I highly recommend it for every .NET 3.5 programmer.
Posted by J. Pease on 1/7/2008
When I first heard someone describe LINQ, I thought "Oh, another ORM... that doesn't sound very exciting".
Upon further research I discovered that LINQ is actually quite a bit more than just "another ORM", in fact, I would say it is one of the more interesting things from Microsoft lately.
The book Pro LINQ does a very good job of covering this new technology, and it does so in a way that you would expect for a "Professional" level book.
For example, I found it immediately appealing that Chapter 1 starts with a code example before ever getting to any regular text. The rest of the book follows suit. There are plenty of explanations, but sometimes seeing the code & result provides the clearest view.
The author does a good job of explaining the technology in detail, why it is useful, and very practical tips on how to make the most of it. The book covers using LINQ to query Objects, XML, DataSets and finally SQL.
I have used the book as an introduction to the topic, and for that it has done an excellent job. It appears that the book is comprehensive enough to also serve as a working reference book, but I have not personally had the chance to use it as such yet.
Bought three books on LINQ -this one is the best!
Posted by Thomas A. McEwen on 8/6/2008
I'm an intermediate level C# programmer (I think) and have been using ADO.net with SQL-Server to build a database application for a client. When I read about LINQ earlier this year, it sounded like something too good to be true. I started with a couple of other books, but found practical explanations of getting things to work lacking. I get the impression, the authors are too far advanced and just assume we have fairly expert knowledge of some of the nuts and bolts things that are elementary to them, so they don't explain these things.
Joseph Rattz's book does not assume we know how to do a lot of this stuff. Rather he explains in detail, how to get LINQ up and running, and to actually get a query completed. I was able within an hour to run SQL Metal to generate an entity class (basically a map from SQL Server to corresponding data objects), and run some of the example queries in the book. That said, this is not a lightweight book for someone new to programming. It's just that he does an excellent job explaining a complex subject. It gets into advanced topics on LINQ and requires some knowledge of C#. If you plan to use this to work with SQL Server, you should also have some experience with that also.
Summing up, there is just something about Mr. Rattz's writing style that makes this book easy to read and understand. I find I'm actually enjoying reading this book, and I certainly can't say that about most technical books I study.