ado net entity data model

[Index page][Download source code] Refined. NET 4.0 (10)-automatically update the database structure (Automatic Migrations) under the Code First of ADO. NET Entity Framework 4.3) Author: webabcd IntroductionNew Feature of ADO. NET

ADO. NET Entity Framework is an entity framework introduced by. NET Framework 3.5 SP1. It allows developers to focus on data through the Object Model (rather than the logical/Relational

Today, I visited the blog of the ADO. NET Entity Framework Team. I am interested in this project because I also write Orm. :) Of course, that grade is not a level. I don't know how many pigeons I put in this project. I still remember the objectspace stuff. Now it's in beta 3, and I 've even published it in LINQ. He can't keep it up. (Winfs in Vista, I guess it's

Microsoft's vision. net is a wide one. in addition to their desire for it to support all programming languages, either directly or through interoperability layers, they also want to bring together all communication frameworks and data storage engines. while WCF is making headway for standardizing communication APIs, their universal data access

In which scenarios does ADO. NET Entity Framework work?Enity Framework is already the main ORM in. NET. From the beginning of a Mapping concept, ORM has been sublimated to a certain extent, especially EF and other improvements to the object-oriented capabilities of the ORM framework. To put it bluntly, the orm enables

ADO. NET Entity Framework, that is, the next generation of ADO. net. It is a more powerful ORM than LINQ to SQL. Developers only need to focus on the development of object models in the domain, rather than how they interact with relational databases. The previous article bri

will usually be: Traverse query full table data, then filter at OO level Needlessly perform instantiation, query, or waste cache resources, or waste query resources I can only say that this is a developer level issue, although it is difficult to locate after a problem, especially in general, will cause memory leaks.Finally, the most common is back to the data

Preparations: Upgrade Visual Studio 2008 and. NET Framework 3.5 to SP1. Click to go to the upgrade address. Install SQL server 2005, and use the EXPRESS version of SQL SERVER in VS 2008. Download and append the database: Click to download DemoDb. Create a VB Application. Note that the target Framework must be set to version 3.5. Query instances: 1. Create a ing Right-click the project and add a new project. Select the new "

complex queries, and the basics you learn in this chapter will make that task easier. Also, at the end of this chapter you will see a key course for query execution.Although the query examples in this chapter are presented in a console program, you can use LINQPad to test these queries and view the results. Some of the guidance in this chapter will also refer to debugging, which cannot be done in LINQPad. See the sidebar "LINQPad" on page 56th for more information on this tool.Querying the

Http://www.cnblogs.com/sorex/archive/2010/08/16/1800761.html I. Scenarios If your project contains stored procedures that return multiple result sets. If your project is to share transactions with ADO. net in the old project. If you want to dynamically create a database table. However, you still want to use Entity Framework. Let's continue. Ii.

chapters, you can write more complex queries. The basics you have learned in this chapter will make that task easier. In addition, you will see the key courses for query execution at the end of this chapter. Although the query examples in this chapter are shown in the console program, you can use linqpad to test these queries and view the results. Some guidance in this chapter will also mention debugging, which cannot be done in linqpad. Click "linqpad" on the sidebar on the 56th page to view

, select Add (add)? New Item. 2. Select the ADO data model under the data template under the Visual C # Entry (ADO). 3. Select generate from database to create a model from an existing one, click Next. 4, you can choose an existin