If you are in a funny situation where you have to run a specific migration file on your Ruby on Rails project then this command will help you:
rails db:migrate:up VERSION=20100905201547
This command runs only that specific file regardless of order of other migration files 🙂
You can find the version name on the migration file name.
And if you want to do the opposite action to redo a migration use this command:
rails db:migrate:down VERSION=20100905201547