How can I tell what changes ‘rake db:migrate’ will apply before applying them?
Does rake db:migrate:status (rails 3+ only) fit the bill?
dbmigrate
How to rollback just one step using rake db:migrate
For starters rake db:rollback will get you back one step then rake db:rollback STEP=n Will roll you back n migrations where n is the number of recent migrations you want to rollback. More references here.