Roll back a specific migration without rolling back other migrations

Question

I mistakenly ran the second to last db migration wrong, but the last migration is fine. Now I want to roll back my second to last migration without reverting the last migration. Please share your knowledge with me and others.

Answer 1

You can use rake db:migrate:down VERSION=xxxxx where xxx is your migration version number for more see this

Answer 2

rake db:migrate:down VERSION=20140804301246

Answer 3

You can specify your Migration file version number to rollback that Migration.

You can achieve it by either of these

rake db:migrate:down VERSION=your_file_version

OR

rake db:rollback:up VERSION=your_file_version

Answer 4

simple answer i found is

rake db:rollback STEP=X 

where X is the number of migration you want to play with(rollback). LIKE

rake db:rollback STEP=3