You can rollback your migration by using rake db:rollback
with different options. The syntax will be different according to your requirements.
If you want to rollback just the last migration, then you can use either
rake db:rollback
or
rake db:rollback STEP=1
If you want rollback number of migrations at once, then you simply pass an argument:
rake db:rollback STEP=n
where n
is number of migrations to rollback, counting from latest migration.
If you want to rollback to a specific migration, then you should pass the version of the migration in the following:
rake db:migrate:down VERSION=xxxxx
where xxxxx is the version number of the migration.