Maybe/db/migrate/20241030121302_fix_not_null_stock_exchange_data.rb

class FixNotNullStockExchangeData < ActiveRecord::Migration[7.2]
  def change
    change_column_null :stock_exchanges, :currency_code, true
    change_column_null :stock_exchanges, :currency_symbol, true
    change_column_null :stock_exchanges, :currency_name, true
    change_column_null :stock_exchanges, :city, true
    change_column_null :stock_exchanges, :timezone_name, true
    change_column_null :stock_exchanges, :timezone_abbr, true
  end
end