Sometimes you may need to fix your database by running the some migration commands in the console or in your code. Heres how to do so.

# To run single migration actions
ActiveRecord::Migration.add_column(:table_name, :column_name, :integer)

# To run all migrations
ActiveRecord::Migrator.migrate('db/migrate')

# To rollback 3 migrations
ActiveRecord::Migrator.rollback('db/migrate', 3)

Related External Links:

• Stack Overflow - run-migrations-from-rails-console