rails undo last migration code example
Example 1: rails rollback multiple migrations
rake db:rollback STEP=n
# n = how many migrations you want to rollback
Example 2: 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
Example 3: rials db down
bin/rails db:migrate:down VERSION=YYYYMMDDHHMMSS
Example 4: rails db:rollback
rake db:rollback VERSION=n
# n = the version you want to rollback to