entity framework book

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 briefly introduced how to use the ADO. Net object framework in the project. From now on, it o

Note: The code example mentioned in this article > How to using the Entity Framework DB first in ASP.How to apply the entity Framework in ASP. NET CoreThe first thing to remind you is that the. NET core and the classic. NET Framework library are not generic, including

(); Console.WriteLine (Emplist.count); Person People=NewPerson () {FirstName="Hello", LastName=" World" }; Context. Persons.add (people); Context. SaveChanges (); Console.ReadLine (); }The sample code is simple, which is to add and view the person table with EF.Configure config fileIf you are using NuGet to get SQLite, you will automatically configure some relevant information in CONFIG.XML version= "1.0" encoding= "Utf-8"?>Configuration> conf

In the previous article, I mentioned that "for cross-database queries, we have not found a method implemented through LINQ to entities ". Later I think about it. Theoretically speaking, it is not difficult to implement cross-database queries. Compared with non-Cross-database queries, I only have one more database name, for example, the following non-Cross-database query statement: Select[Text]FromDBO. blog_postbodyWhereID=3560 Cross-database query statement: Select[Text]FromCnblogstext. DBO

ArticleDirectory What is o/R Mapping? Introduction to Entity Framework The Entity Framework is a set of data-oriented software applications in ADO. net.Program. Is An ORM framework of Microsoft. What is o/R Mapping? In a broad sense, Orm refers to the mutu

Entity Framework (basic introduction to 1-ef), entity1 -- ef I recently studied Microsoft's EF. After studying this time, I feel that this EF is not perfect yet. However, it is said that in. Net4.0, Microsoft will recommend this framework and improve it. In addition, all databases now support EF. Therefore, you can study the following for future technical prepara

Entity Framework learning notes (2) Data Model use process, entityframework Use Entity Framework data Model creation: Development Environment: VS2012 Database: SQL Server 2008 Entity Framework Version: 6.12 The following figure sh

Reprint http://www.th7.cn/Program/net/201301/122153.shtmlHow Code first handles inheritance between classes. Entity Framework Code First has three methods for handling inheritance relationships between classes, and we will describe each of the three processing methods.1.Table Per Hierarchy (TPH): Create only one table that maps all the properties in the base class and subclass to the columns in the table.2.

I often see people asking how to layer a project that uses ADO. NET Entity Framework or LINQ to SQL. EF or linq2sql generates an entity class by themselves. Since entity classes run through the entire project, if the automatically generated entity class is used as part of th

http://blog.csdn.net/jfchef/article/details/7632872What is the difference between the Entity Framework and LINQ to SQL? This is a very common problem. The main differences between the two technologies are briefly outlined in the table below. LINQ to SQL Entity Framework Complexity

In ASP. NET, the actual project application of ADO. NET Entity Framework has doubts. About ADO. NET Entity Framework Theory, entry-level teaching articles have been a lot of, but few people talk about ASP. net projects, which are easy to solve when learning. For example, the most common method of using this form in th

Srikanth manadi, development leader of Entity Framework, saidArticleTo solve the big data model problems in Entity Framework, but it clearly means "using some tips" to solve these problems. This article first talks about the expected number of entities between 50 and 100 for any application. Beyond this range, the edit

First, the difference between LINQ to SQL and the Entity Framework:Both LINQ to SQL and the Entity Framework are object-relational mapping techniques that contain LINQ functionality. The essential difference between them is that EF does a better job of decoupling the database schema from the type of our query. With EF, the object we're querying is no longer a C #