Add national columns

db/migrate/20220927082602_add_national_column.rb

@@ -0,0 +1,8 @@
+class AddNationalColumn < ActiveRecord::Migration[7.0]
+  def change
+    change_table :sales_logs, bulk: true do |t|
+      t.column :national, :integer
+      t.column :othernational, :string
+    end
+  end
+end