rails migration remove table code example

Example 1: how to delete a table in rails

rails g migration DropProducts

class DropProducts < ActiveRecord::Migration
  def change
    drop_table :products
  end
end

Example 2: rails migration remove column

rails g migration Remove..From.. col1:type col2:type col3:type

#Exemple :

rails g migration RemoveCountryFromSampleApps country:string

Example 3: ruby on rails db migrate

rails db:migrate