The Code First workflow allows the developer to generate the database from POCO (Plain Old CLR Objects). The developer creates a database context and entities in class files then generates the database from those files. This is a good approach for a new application but it can also be used for an existing application with an existing database. EDMX file. The model and objects are automatically created based on the database which gives this approach the least flexibility but also the least amount of work for the developer to do. This is a good approach for an existing application that already has a database. The Database First workflow allows the developer to reverse engineer an existing database into a. a “green field” application) and when you want to visually see or communicate the database model. EDMX file. Through the designer, the developer defines all the database objects and relations then generates the database objects based on the model. This is a good approach when there is no existing database (i.e. The Model First workflow allows the developer to use a visual designer to create a database design that ends up in a. Once you have made the choice to use Entity Framework for your application, you have to make another decision about which workflow to use. NET ORMs to consider include Dapper, a simple and lightweight object mapper, and NHibernate. Entity Framework has several workflows to choose from which will be explained in the next section but for this article, we’ll focus on Code First. NET applications. As an ORM, Entity Framework provides an abstraction layer between your code and the database freeing you of most of the database design concerns and allowing you to concentrate your efforts on the application. Other. Entity Framework 6 is a stable and mature ORM that should be considered for most.
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