![]() The method Up() is used to generate the migrations script when you want to apply this migration and the method Down() is used when you want rollback this migration. As you may expect, the dotnet ef migrations script command line can help us generate the SQL script that will allow us to rollback one a several migrations. In those files you will find two method : Up() and Down(). Package Manager Console PM > add- migration MyFirstMigration Nu s dng lnh dotnet Command Line Interface. You will generate the script to rollback from migration Third to migration Second, and that’s it ! One more detailĪs you may already know, the migrations are created thanks to the automatically scaffold files that you generate with the command dotnet ef migrations add MigrationName. If you want to roll back the database, you can provide the name of the previous migration: dotnet ef database update CreateIdentitySchema This will run the Down. M Package Manager Console t Tools -> NuGet Package Manager -> Package Manager Console. Core but use some form of command line or deployment pipeline integration. ![]() This command is of course not dedicated to rolling back, it will only depends on the order of your parameters ! For example with this command : dotnet ef migrations script ThirdMigration SecondMigration Typically, these migration tools have their own version of EF Core migration. Without further ado, here is the command line you might use to generate such a script with the : dotnet ef migrations script Open the Package Manager Console from menu Tools -> NuGet Package Manger -> Package Manager Console in Visual Studio to execute the following commands. Command line at the rescueĪs you may expect, the dotnet ef migrations script command line can help us generate the SQL script that will allow us to “rollback” one a several migrations. Migration commands in Entity Framework Core can be executed using the Package Manager Console in Visual Studio. We’ll see that it is in fact very easy to generate the same kind of script to rollback one or many migrations as easily. Then I needed to revert it back on a previous stage. The need is pretty simple : I updated a database in my “staging” environment on which I cannot directly use the dotnet ef migrations command because updates are done through migrations scripts. For example, the previous command starts the postgresql service and runs bash as its command. In this very short post, I’d like to share a quick tip that I actually had some troubles to find elsewhere on the internet that was easy to understand ! But now, my migration sql scripts arent runned anymore.
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