How to delete a table if rollback fails?

Question

Ruby on Rails

Rollback does not work, I thought it would work if I divided the migration, but alas.

Answer 1

If necessary, through migration, create an empty migration DeleteComments and write in it drop_table :commentsThen run the migration.
Here is the details api.rubyonrails.org/classes/ActiveRecord/Migration.html
Or you can without migration, start the rails console and type
ActiveRecord::Migration.drop_table(:comments)

Answer 2

And if you try to delete the model?

Answer 3

Create "correct" migrations with up and down methods, you can read more details here: selectedproblems.blogspot.com/2011/09/rails-migrat...
If you had a "correct" migration, you could write rake db to rollback :rollback