ado.net entity framework 和 ado.net entity data model以及Linq To Sql 区别?

IT-Style 2012-02-23 09:00:27

求这三者区别以及自己对这三者在项目应用中的见解!

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liujiantao_1981 2012-02-24

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当采用model first 和 database first时会用到Ado.net entity data model

liujiantao_1981 2012-02-24

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ado.net entity data model就是entity framework
entity Framework和linq to sql 都是用来实现数据库数据的访问的。
建议用 ado.net entity data model

IT-Style 2012-02-23

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多么长时间没人回复,坐等大侠...

本文档主要介绍.NET开发中两项新技术，.NET平台语言中的语言集成查询技术 LINQ，与ADO.NET 中新增的数据访问层设计技术ADO.NET Entity Framework。ADO.NET的LINQ to Entity部分以LINQ 为基础，为了完整性本文档首先介绍LINQ技术 Entity Framework 教程目录预备知识 2 LINQ技术 2 LINQ技术的基础 C#3.0 2 自动属性 2 隐式类型 2 对象初始化器与集合初始化器 3 匿名类 3 扩展方法 4 Lambda表达式 4 .NET中的数据访问 4 DataSet方案 5 改进的的DataSet方案 5 手写代码通过ADO.NET2.0连接类与数据库交互 5 ORM – LINQ to SQL 6 深入了解Entity Framework 7 Entity Framework的核心 – EDM(Entity Data Model) 7 EDM概述 7 EDM之CSDL 7 EDM之SSDL 11 EDM之MSL 12 EDM中存储过程的设计 15 EDM中ComplexType的设计 16 实体数据模型映射方案 17 Entity Framework的原理及使用方式 18 各种使用方式总结 18 使用技巧及需要注意的问题 21 几种方法的性能分析及使用选择 21 其它操作EDM的方式 22 为什么要使用Entity Framework，限制条件及当前版本框架的问题 23 EDM中的DML 23 含有Association的EDM的使用 23

A comprehensive guide to the Entity Framework with insight into its latest features and optimizations for responsive data access in your projects About This Book Create Entity data models from your database and use them in your applications Learn about the Entity Client data provider and write statements in Entity SQL to perform CRUD operations Explore ADO.NET Data Services and how they work with the Entity Framework Who This Book Is For If you are a C# developer who wants to learn a new way of querying data and utilizing it in applications efficiently for data binding or other operations, then this book is for you. Basic knowledge of ADO.NET is assumed. What You Will Learn Explore the features of the ADO.NET Entity Framework Understand the concepts of entities and their relationships Create an Entity Data Model using the ADO.NET Entity Data Model Designer and the EdmGen tool Extend existing Entity Types to create your own Entity Types Write programs against the Entity Data Model to perform CRUD operations Discover ADO.NET Data Services and learn how they can be used with the Entity Framework Familiarize yourself with WCF Data Services (formerly ADO.NET Data Services) Apply Code First, Model First and Database First approaches In Detail The ADO.NET Entity Framework from Microsoft is a new ADO.NET development framework that provides a level of abstraction for data access strategies and solves the impedance mismatch issues that exist between different data models. This book explores Microsoft's Entity Framework and explains how it can used to build enterprise level applications. It will also teach you how you can work with RESTful Services and Google's Protocol Buffers with Entity Framework and WCF. You will explore how to use Entity Framework with ASP.NET Web API and also how to consume the data exposed by Entity Framework from client applications of varying types, i.e., ASP.NET MVC, WPF and Silverlight. You will familiarize yourself with the new features and improvements introduced in Entity Framework including enhanced POCO support, template-based code generation, tooling consolidation and connection resiliency. By the end of the book, you will be able to successfully extend the new functionalities of Entity framework into your project. Style and approach This book is a step-by-step tutorial providing hands-on code examples with detailed explanations. The book aims to explain the concepts of the Entity Framework and illustrate how you can use these in applications with a tutorial based approach. Table of Contents Chapter 1: Introducing the ADO.NET Entity Framework Chapter 2: Getting Started Chapter 3: Entities, Relationships, and the Entity Data Model Chapter 4: Working with Stored Procedures in the Entity Data Model Chapter 5: Working with Entity Client and Entity SQL Chapter 6: Working with LINQ to Entities Chapter 7: Working with the Object Services Layer Chapter 8: Working with WCF Data Services Appendix: Advanced Concepts

英文高清原版，本人资源全部免费，更多资源请查看本人的上传资源 =================================================== 作者：Julia Lerman 页数：914页定价:567.00 内容简介：Get a thorough introduction to ADO.NET Entity Framework 4 --Microsoft's core framework for modeling and interacting with datain .NET applications. The second edition of this acclaimed guideprovides a hands-on tour of the framework latest version in Visual Studio 2010 and .NET Framework 4. Not only will you learn how touse EF4 in a variety of applications, you'll also gain a deepunderstanding of its architecture and APIs. Written by JuliaLerman, the leading independent authority on the framework,Programming Entity Framework covers it all -- from the Entity DataModel and Object Services to WCF Services, MVC Apps, and unittesting. This book highlights important changes for experienced developers familiar with the earlier version. * Understand the coreconcepts you need to make the best use of the EF4 in your applications * Learn to query your data, using either LINQ toEntities or Entity SQL * Create Windows Forms, WPF, ASP.NET WebForms, and ASP.NET MVC applications * Build and consume WCF Services, WCF Data Services, and WCF RIA Services * Use Object Services to work directly with your entity objects * Createpersistent ignorant entities, repositories, and write unit tests *Delve into model customization, relationship management, change tracking, data concurrency, and more * Get scores of reusable examples -- written in C# (with notes on Visual Basic syntax) --that you can implement right away 作者简介：Julia Lerman is the leading independent authority on the Entity Framework and has been using and teaching the technology since itsinception two years ago. She is well known in the .NET community asa Microsoft MVP, ASPInsider and INETA Speaker. She is a prolific blogger, a frequent presenter at technical conferences around the world, including DevConnections and TechEd and she writes articlesfor many well-known technical publications. Julia lives in Vermontwhere she runs the Vermont.NET User Group, is a board member of theVermont Software Developers Alliance, and a member of the Champlain College Software Engineering Advisory Board. You can read her blogsat www.thedatafarm.com/blog.

Microsoft Entity Framework是 ADO.NET 中的一套支持开发面向数据的软件应用程序的技术，可以使用以下三种技术对EDM进行操作： 1) LINQ query 语言集成查询 (LINQ) 在对象领域和数据领域之间架起了一座桥梁。具有完全类型检查和 IntelliSense 支持。 2) LINQ query with a lambda 使用lambda表达式操作数据查询。 3) Entity SQL Entity SQL类似SQL语言，它的存在是为了查询ADO.NET Entity Framework（EF），以用于支持Entity Data Model （EDM）。EDM表示一组实体与关系（ER）的集合，映射到指定的数据源（可以是Oracle，MsSql 或其它类型的数据库）。Entity SQL支持EDM，使用户能够有效地查询数据。实体框架是 ADO.NET 中的一套支持开发面向数据的软件应用程序的技术。面向数据的应用程序的架构师和开发人员曾为实现两个迥然不同的目标费尽心机：他们必须为要解决的业务问题的实体、关系和逻辑构建模型，还必须处理用于存储和检索数据的数据引擎。数据可能跨多个各有不同协议的存储系统。

预备知识 2 LINQ技术 2 LINQ技术的基础 - C#3.0 2 自动属性 2 隐式类型 2 对象初始化器与集合初始化器 3 匿名类 3 扩展方法 4 Lambda表达式 4 .NET中的数据访问 4 DataSet方案 5 改进的的DataSet方案 5 手写代码通过ADO.NET2.0连接类与数据库交互 5 ORM – LINQ to SQL 6 深入了解Entity Framework 7 Entity Framework的核心 – EDM(Entity Data Model) 7 EDM概述 7 EDM之CSDL 7 EDM之SSDL 11 EDM之MSL 12 EDM中存储过程的设计 15 EDM中ComplexType的设计 16 实体数据模型映射方案 17 Entity Framework的原理及使用方式 18 各种使用方式总结 18 使用技巧及需要注意的问题 21 几种方法的性能分析及使用选择 21 其它操作EDM的方式 22 为什么要使用Entity Framework，限制条件及当前版本框架的问题 23 EDM中的DML 23 含有Association的EDM的使用 23

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