Ms Entity Framework

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Mapping an existing entity class (POCO) in entity Framework 4

The full name of the Entity framework is the Ado.net Entity framework, the Ado.net based ORM (object/relational Mapping) architecture developed by Microsoft. The main features of the Entity framework: 1. Supports multiple databases (Microsoft SQL Server, Oracle, and DB2); 2. Strong mapping engine, well supported storage ...

Look at the complex page-Entity SQL statements generated by the Framework 4

The count query statement generated by entity Framework 4 was previously found to be a problem with the paging SQL statement that it generated today, and LINQ to SQL does not.   >>> take a look, and see! On code: Look at the generated SQL statement: 1.   Entity framework-generated SQL: A top, three from. 2. LINQ to SQL generated sql: ...

Default value for Entity framework bug resolution

When you develop a Web site using the Entity Framework in. Net 3.5, you encounter a problem: When you add a record, you cannot use the default value of the database for datetime-type data.   The specific situation is this, my database has a users table, three fields, Id,username,createtime. ID is int type, since growth, primary key username is Nvchar (10) type, not allowed to be empty createtime is da ...

An AOP framework for Web application Dynamic Data internationalization based on Java EE architecture

The scheme has been successfully applied, which can realize the standard and efficient internationalization software development, and reduce the time and effort needed for software development. The development of Internet has promoted the communication of the whole world, it needs to develop the WEB application that satisfies the requirements of different regions ' language, culture and living habits, therefore, the internationalization of software has become the problem that must be solved. At home and abroad, there are some deficiencies in internationalization methods: Existing Dynamic Data internationalization solutions are not easy to transplant and reuse. There is no out-of-the-box Dynamic Data internationalization solution or framework. To solve the above problems, we need to propose a dynamic ...

"NET" Luo yiwu 70,000 entity store Commodity City again walk the electric trade route

Securities Times reporter Lee The rise of the electric power to the traditional business has brought great challenges, is in the traditional business industry to seek a new road, covering small commodity city (600415, shares bar) (600415) more than 70,000 entities commercial shops online commodity city officially launched. Yesterday, commodity city in the 18th session of the fair held "Yiwu shopping" on-line ceremony. The official online purchase of Yiwu is an important measure to expand Yiwu market development space, promote market transformation and upgrade, enhance market development competitiveness, and realize the innovation and development of Yiwu e-commerce industry and promote the real market and network economy.

Openxava 4.2.3 publishes AJAX Java application framework

Openxava is a framework for rapid development of Ajax JAVAEE/J2EE applications, making it simpler. It can define the application by using POJO,JPA and Java 5 annotations and persist the Run-time entity objects to the database. It has a flexible and powerful feature that can be used to build JSR-168 portlet applications, including: liferay,http://www.aliyun.com/zixun/aggregation/13387.html& ...

Openxava v4.1.1 publishes the Java EE Business Application framework

Openxava is a simple framework for using XML and Java to develop j2eehttp://www.aliyun.com/zixun/aggregation/6441.html "> Business applications." Openxava does not use the common MVC architecture, which is a JPA application engine that enables you to persist the Run-time entity objects into a database by JDK5.0 annotations or XML to describe the mapping relationship of the object-relational table. Use Openxava ...

Openxava v4.1 releases the simple framework of Java EE business applications

Openxava is a simple framework for using XML and Java to develop j2eehttp://www.aliyun.com/zixun/aggregation/6441.html "> Business applications." Openxava does not use the common MVC architecture, which is a JPA application engine that enables you to persist the Run-time entity objects into a database by JDK5.0 annotations or XML to describe the mapping relationship of the object-relational table. Use Openxava ...

Azure Services Discovery-Storage table (table) storage

This series of articles is a learning record about the fundamentals of azure services development, and because of time constraints, the process of wishing to discuss and explore yourself is from scratch, to be able to develop basic programming for azure services. There may be a very deep topic relative to each topic, and I would like to have time to do it through other articles.   The positioning of this series is basically positioning, take 20-30 minutes, download the code first, follow the article, run to get the relevant experience. The previous article is about Azure queue storage, this is about ...

ORM Object Relational mapping has become a hot technology

Simple mapping is one of the simplest and most basic of object-relational mapping, so learning simple mapping is the prerequisite of mastering inheritance mapping and relational mapping. In recent years ORM (Object-relational Mapping, Object-relational mapping, that is, the mapping of entity objects and database tables) technology market is very lively, a variety of persistent framework came into being, the most influential is the Hibernate and TopLink. Sun is fully absorbing existing excellent ORM especially hibern ...

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