Design a set of database tables for a pizza restaurant.
The restaurant stores the names, addresses, and phone numbers of its home delivery customers. All the current and previous orders for each customer are stored in the database. An order includes one or more pizzas. A pizza has size, crust type, and up to eight different toppings. The cost of the pizza is computed based on size, crust type, and a price per topping.
List the SQL code creating the tables.