I would call a Database / Datasource the heart of any application. So, we will need an efficient way to read and securely write clean data into our data source. You may think of traditional SQL Queries and ADO.NET approaches to achieve the task.
Open the First Get Link where it says /api/Student and click on execute. There are 2 approaches while developing with Entity Framework Core in ASP.NET Core application namely. Having .NET Core, Visual Studio, and SQL Server installed on your computer is good. When an entity has the property of generic collection type, it is known as collective navigation property.
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It specifies a standard that represent what type of data and value can be defined and managed in computer memory at runtime. A CTS ensures that programming data defined in various languages should beinteract with each other to share information. For example, in C# we define data type as int, while in VB.NET we define integer as a data type.
From the below window, we are going to choose the Empty Project Template and Select MVC from Add Folders and core reference section. It is a subset of common type system (CTS) that defines a set of rules and regulations which should be followed by every language that comes under the .net framework. In other words, a CLS language should be cross-language integration or interoperability.
The 2 Most Important Commands
Let us proceed and see how we can rewrite the same example using Entity Framework using C# language. The following diagram illustrates where the Entity Framework fits into our application. Prior to .NET 3.5, we (developers) often used to write ADO.NET code or Enterprise Data Access Block to save or retrieve application data from the underlying what is entity framework database. We used to open a connection to the database, create a DataSet to fetch or submit the data to the database, convert data from the DataSet to .NET objects or vice-versa to apply business rules. Microsoft has provided a framework called “Entity Framework” to automate all these database related activities for your application.
Please use the below SQL script to create the database EF_Demo_DB, and tables Departments and Employees, and populate the tables with sample data. However, whenever I see a blog post about a project / feature, or a direct shout-out to entity framework, I never see anyone speaking poorly of Entity Framework… At least not in the manner that I speak of it in my day-to-day musings with fellow developers. At this point, if I see Entity Framework on a job description, I cringe in the same way I would if the job was for a Sharepoint developer. There is already an object named ‘AspNetRoles’ in the database. This command will create initials for the project inside migration folder.