Скачать с ютуб part 6 how to seed database with test data using entity framework в хорошем качестве

part 6 how to seed database with test data using entity framework

Download 1M+ code from https://codegive.com/7dc54aa seeding a database with test data using entity framework (ef) is a crucial step in setting up a development or testing environment. this tutorial will guide you through the process of seeding data into a database using entity framework core, including a code example. prerequisites 1. **.net sdk**: ensure you have the .net sdk installed on your machine. 2. **entity framework core**: if you haven't already, install the necessary nuget packages for entity framework core. you can do this via the nuget package manager or the command line: 3. **database provider**: this example assumes you are using sql server, but ef core supports various database providers. step 1: create the model first, create a simple model class. for example, let’s create a `product` class: step 2: create the dbcontext next, create a `dbcontext` that includes a `dbset` for the `product` model: step 3: create the migration to apply the changes to the database, create a migration. open your terminal/command prompt and run the following command: this command will create a migration file in the `migrations` folder. you can inspect this file to see the generated code for creating the `products` table and seeding it with data. step 4: update the database now, update the database with the new migration. run the following command: this command will create the database (if it does not exist) and apply the migration, creating the `products` table and inserting the seeded data into it. step 5: verify the data you can verify that the data has been seeded by querying the database. you can use sql server management studio, or you can write a simple console application to read the data: step 6: re-seeding data (optional) if you want to re-seed your database (for example, during development), you can add the `ensuredeleted` and `ensurecreated` methods in your `program.cs` or wherever you set up your application: this will drop the existing database and create a new one, appl ... #EntityFramework #DatabaseSeeding #numpy seed database test data entity framework database seeding EF Core sample data data population database initialization unit testing mock data development environment data context migration scripts seeding strategy automated testing