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Microsoft ADO.NET Entity Framework Step by Step [Format Kindle]

John Paul Mueller

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Descriptions du produit

Présentation de l'éditeur

Your hands-on guide to Entity Framework fundamentals

Expand your expertise—and teach yourself the fundamentals of the Microsoft ADO.NET Entity Framework 5. If you have previous programming experience but are new to the Entity Framework, this tutorial delivers the step-by-step guidance and coding exercises you need to master core topics and techniques.

Discover how to:

  • Access data in a managed way—using minimal code
  • Apply three workflows supported by the Entity Framework
  • Perform essential tasks with full automation in place
  • Manipulate data with both LINQ and Entity SQL
  • Create examples that rely on Table-Valued Functions
  • Determine the remedies for Entity-specific exceptions
  • Explore the use of optimistic and pessimistic concurrency
  • Define mappings between your applications and data sources

Biographie de l'auteur

John Paul Mueller is a technical editor and freelance author who has written on topics ranging from database management to heads-down programming, from networking to artificial intelligence. He is the author of Start Here! Learn Microsoft Visual C# 2010.


Détails sur le produit

  • Format : Format Kindle
  • Taille du fichier : 6683 KB
  • Nombre de pages de l'édition imprimée : 450 pages
  • Utilisation simultanée de l'appareil : Jusqu'à 5 appareils simultanés, selon les limites de l'éditeur
  • Editeur : Microsoft Press; Édition : 1 (15 août 2013)
  • Vendu par : Amazon Media EU S.à r.l.
  • Langue : Anglais
  • ASIN: B00JDMPMHW
  • Synthèse vocale : Activée
  • X-Ray :
  • Word Wise: Non activé
  • Composition améliorée: Non activé
  • Classement des meilleures ventes d'Amazon: n°93.701 dans la Boutique Kindle (Voir le Top 100 dans la Boutique Kindle)

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Commentaires en ligne

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Amazon.com: 3.0 étoiles sur 5  5 commentaires
10 internautes sur 11 ont trouvé ce commentaire utile 
3.0 étoiles sur 5 Fair Introduction to EF 5 Features with Model First 22 août 2013
Par Jason - Publié sur Amazon.com
Format:Broché
I purchased the ebook version of this book directly from the publisher. Since it was the first book available that covered EF 5 features, and was also a step by step guide, I thought it would be useful to update and augment my knowledge of Entity Framework. I read and worked through the entire book.

Overall, the author proceeds in a very step-by-step fashion (as the title indicates), and the only item that may be difficult for a beginner is knowing where SQL Server Express stores the .mdf and .ldf files (several times this is a required step, but the information is not provided).

The author uses a simple Windows Forms application to walk through all of the book's examples. Also, Database First and Code First are given brief treatment; Model First is used for almost all of the examples and topics covered.

The main EF 5 features, such as using Table-Valued Functions, enumerations, and model designer features are covered in some detail, but briefly. Both LINQ and Entity SQL are covered at length, mainly listing many of the possible usages; the samples for both are fairly limited. The book does discuss important topics such as concurrency, and also has interesting material found in the last section of the book, on working with POCO entities (from a Model First perspective), inheritance (but not differentiating the types of inheritance that EF offers), and using partial classes to customize basic methods like "SaveChanges()", among other things.

I won't provide a chapter-by-chapter summary, as the table of contents is fairly self-explanatory. I will say that for many chapters, the coverage of the topic is again brief.

Pros:
* The book is not long, so you can read and work through the samples in a short amount of time.
* The author does discuss some important topics, such as perceived performance vs. actual performance.
* There are very few typos or mistakes, with only minor errata.
* The author does respond to questions.
* The highlights of EF 5 are covered, albeit in a Model First approach.

Cons:
* The book does not cover any platforms other than Windows Forms; using EF with MVC, Web Forms, WCF, or any other platform is not discussed. I don't think a reader of this book could effectively use Entity Framework in a disconnected scenario, or even a web-based scenario.
* The book gives little coverage of Code First (and Database First); I would have traded in the chapter on Entity SQL for at least an introduction to Code First with migrations, as this is a popular option for developers, even if nothing has really changed from EF 4.3 to EF 5 in this regard.
* All of the models in the book use two entities (with the exception of the example on inheritance, which has five); a richer model would be more representative of a "real database".

I would recommend the book as a starting point for a junior or mid-level developer who has never worked with Entity Framework. That said, I would not let this be your last book (or tutorial) on Entity Framework by any means.

I highly recommend the Entity Framework books written by Julie Lerman, along with her courses on Pluralsight. Many other courses on Pluralsight also showcase Entity Framework with repository and unit of work patterns that are briefly touched on in this book.

Finally, I highly recommend Itzik Ben-Gan's book on Microsoft SQL Server 2012 T-SQL Fundamentals, if you are working with SQL Server. In general, I think that it is a good ideas for developers to understand SQL and the RDBMS itself as much as possible. I think this enables better usage of Entity Framework and better decision-making capabilities when running into its limitations.

If all Entity Framework developers were using Model First, or if the title indicated Model First, I would probably have gone with four stars. I waffled on the exact star rating because the author did not do a poor job. I simply think that covering (or discussing) platforms beyond Windows Forms, and also additional coverage of Code First was warranted, so I give this three stars.
8 internautes sur 10 ont trouvé ce commentaire utile 
2.0 étoiles sur 5 Useless book and waste of money 13 novembre 2013
Par Eugene - Publié sur Amazon.com
Format:Broché
Very disappointed with this book.

- Content is poorly organized. (if organized at all)
- 50% of the book are useless screenshots of Visual Studio windows
- Every chapter is a click through guide how to create a new project from scratch (can't you remember this from the first chapter, or didn't you ever create any projects in Visual Studio yet?), then how to add two lines of code here and there, and, unfortunately, no any good explanation what's going on under the hood
- Code samples are in C#, but styled like old VB scripts. Really hard to read and understand

There are much better books available from other publishers. Especially about new DbContext features and other important changes since Entity Framework 5.

Don't waste your money. At least go and preview the book content for yourself on Amazon.
8 internautes sur 12 ont trouvé ce commentaire utile 
1.0 étoiles sur 5 Avoid 5 septembre 2013
Par Rex Pebble the II - Publié sur Amazon.com
Format:Broché|Achat vérifié
Key concepts are poorly communicated. Sentence structure lacks formality necessary for computer science concepts. Prose is high school level. Poor editing of tutorial steps. EF concepts lost in a sea of VS designer and WinForms tutorial steps. To be clear - I don't object to WinForms but the VS designer content truly predominates and distracts from EF content. Lehrman sets a high standard and this text does not come close.
1 internautes sur 3 ont trouvé ce commentaire utile 
4.0 étoiles sur 5 Good coverage, delivers on promised content 15 septembre 2013
Par bibliomanic - Publié sur Amazon.com
Format:Broché
Microsoft ADO.NET Entity Framework Step by Step by John Paul Mueller (Microsoft Press) is now the second consecutive book I've read on Entity Framework. Once again, I'm highly impressed by the content. Of course, Mr. Mueller is no stranger to technical writing. A few years ago I read his book Professional IronPython, and at the time I remarked how well-written and applicable the material was to everyday professional programming. Now comes his latest book, and it was refreshing to see such a pragmatic approach taken to programming with Entity Framework 5.

This book is undoubtedly step-by-step, just as the title implies. By the second chapter, the author had me coding a simple model-first application with very clear and thorough steps explaining how (and why), Entity Framework can make building data-centric applications a breeze. Chapter 3 discusses the three basic workflows in EF development (code-first, model-first, database-first) and that's where the book wraps Part I.

Part II dives much deeper and discusses EF objects, object services, and querying with Entity SQL. It also delves into extension methods to some degree, and Lambda expressions. All of this is to make the developer become comfortable with create, read, update and delete operations against EF objects. Part III contained a number of chapters relative to working with manipulating data at both the client and server level. Throughout these chapters, Mr. Mueller approaches working with these two contexts in both linear fashion, as well as approaching interaction directly with tables, stored procedures, views and table-valued functions.

Part IV is all about troubleshooting exceptions, and I found this the most invaluable content in the entire book. Mr. Mueller includes topics like various levels of exceptions and optimistic concurrency. Moreover, he addresses performance issues and threading, something not commonly seen in a lot of books on this subject. The book concludes with custom entity creation, mapping data types, and multiple-model manipulation (say that 5 times real fast).

I did not like the fact that nearly all of the examples required the reader to have Visual Studio 2012 Professional or greater (e.g., a lot of things wouldn't work in Visual Studio 2012 Express editions). Then again, the author was pretty up-front about the fact so I can't really complain. I also don't feel the book was necessarily for the Intermediate programmer. There was much from which a novice or student could gain from the content, and I think there should have been some attempt to target that audience. All-in-all, I felt the book did the topic justice and came through on its promised content. Mr. Mueller also has a pretty good style because let's face it, some technical material can be really dry. A solid effort and I recommend it for anyone, novice to intermediate, who wants to learn Entity Framework 5 from the ground up.

* In the interest of full disclosure, I received a free copy of the book from the publisher in exchange for writing this review. However, all opinions and observations regarding the text are my own, and based on my experience as a professional developer.
1 internautes sur 4 ont trouvé ce commentaire utile 
5.0 étoiles sur 5 excellent overview of the Entity Framework 22 août 2013
Par Amazon Customer - Publié sur Amazon.com
Format:Format Kindle|Achat vérifié
It is my first development book I bought. I was always a bit skeptic about buying such book, because technology changes quickly. But I must say that while reading this book, there is an in depth and step by step explanation about the Entity Framework. It guides me through the process and makes it look easy.

I created some sample applications while reading the book, to test some of what I learned in reality. The book seems also a very good reference guide while building your own applications.
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