RUBY

List and delete migration from rails console

rails db:migrate:status
rails dbconsole
delete from schema_migrations where version='<version>';

how to destroy a migration in rails

$ rails d migration SameMigrationNameAsUsedToGenerate

rails migration remove colum

remove_column :table_name, :column_name

how to reset migrations rails

To rollback all migrations the best solution is:

rake db:migrate VERSION=0
This will rollback any migrations without losing data. Then, run all migrations again with

rake db:migrate