A local chocolate store wants to make database that helps them to keep track of online
order and shipping. For customers, they want to keep the customer name, address, phone,
email, date of birth, etc. The store has a variety of chocolate products. For each product, the
store wants to keep track of name, price and quantity on hand. For each order, the store
wants to keep track of the order date and total price. The store offers multiple shipping
methods which vary by speed and price. Customers can choose a certain shipping method
when they place an order and the total order price should be calculated based on not only
the price of product but the price of shipping method.