![]() ![]() ForeignKey("dbo.Authors", t => t.Author_AuthorId)ĭropForeignKey("dbo.BlogPosts", "Author_AuthorId", "dbo.Authors") ĭropIndex("dbo.BlogPosts", new ) Īs you can see, in method Up() two tables Authors and BlogPosts are created and the fields are created accordingly. Title = c.String(nullable: false, maxLength: 128), Id = c.Int(nullable: false, identity: true), Want to include in this migration, then you can re-scaffold it by runningĪ new file timestamp_Initial.cs is created (only the important stuff is shown here): public override void Up()ĪuthorId = c.Int(nullable: false, identity: true), If you make additional changes to your model that you This snapshot is used to calculate the changes to your model when you ![]() The Designer Code for this migration file includes a snapshot of your current Codeįirst model. Now apply the command based on the example above to create a migration called Initial: PM> Add-Migration Initial This command will create a new class containing two methods Up and Down that are used to apply and remove the migration. Mapping relationship with Entity Framework Code First: One-to-one and variationsĪfter you've enabled migrations (please refer to this example) you are now able to create your first migration containing an initial creation of all database tables, indexes and connections.Ī migration can be created by using the command Add-Migration.Mapping relationship with Entity Framework Code First: One-to-many and Many-to-many.Inheritance with EntityFramework (Code First).Initial Entity Framework Code First Migration Step by Step.Doing "Update-Database" within your code.Best Practices For Entity Framework (Simple & Professional).Advanced mapping scenarios: entity splitting, table splitting.
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