How to unapply a migration in ASP.NET Core with EF Core

Question

When I run PM> Remove-Migration -context BloggingContext in VS2015 with an ASP.NET Core project using EF Core I get the following error:

Syst         


        

Answer 1

To unapply a specific migration(s):

dotnet ef database update LastGoodMigrationName
or
PM> Update-Database -Migration LastGoodMigrationName

To unapply all migrations:

dotnet ef database update 0
or
PM> Update-Database -Migration 0

To remove last migration:

dotnet ef migrations remove
or
PM> Remove-Migration

To remove all migrations:

just remove Migrations folder.

To remove last few migrations (not all):

There is no a command to remove a bunch of migrations and we can't just remove these few migrations and their *.designer.cs files since we need to keep the snapshot file in the consistent state. We need to remove migrations one by one (see To remove last migration above).

To unapply and remove last migration:

dotnet ef migrations remove --force
or
PM> Remove-Migration -Force