Adding a migration in Entity Framework Core involves the following steps:
Ensure that your Entity Framework Core project is set as the startup project in Visual Studio.
Open the Package Manager Console (PMC) by going to Tools > NuGet Package Manager > Package Manager Console.
In the PMC, select the project you want to add the migration to using the drop-down list.
Ensure that the Entity Framework Core package is installed in your project. If it is not installed, you can install it using the following command:
Install-Package Microsoft.EntityFrameworkCore
- Create the migration using the PMC. Use the following command to create a new migration:
Add-Migration <MigrationName>
Replace <MigrationName>
with a descriptive name for the migration. This name should be unique and descriptive of the changes made in the migration.
After running the above command, Entity Framework Core will generate a new migration class in the Migrations folder of your project. This class will contain the code required to update the database schema.
Review the generated code in the migration file to ensure that it accurately reflects the changes you want to make to the database.
Apply the migration to the database using the following command:
Update-Database
This command will apply the migration to the database and update the schema.
That's it! You have now added a migration in Entity Framework Core, which allows you to keep track of changes to your database schema and apply those changes in a structured and repeatable way.
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