sec 86 -> lec 5 -> 10:20
npx sequelize db:create
npx sequelize db:migrate
npx sequelize seed:generate --name add-airplanes
npx sequelize db:seed:undo:all
npx sequelize db:seed:all
npx sequelize model:generate --name City --attributes name:string
npx sequelize migration:generate --name update-city-airport-association
SELECT
TABLE_NAME, COLUMN_NAME, CONSTRAINT_NAME, REFERENCED_TABLE_NAME, REFERENCED_COLUMN_NAME
FROM
INFORMATION_SCHEMA.KEY_COLUMN_USAGE
WHERE
REFERENCED_TABLE_SCHEMA = 'flights'
AND REFERENCED_TABLE_NAME = 'airport';