Question: Business rules:
1) The OrderID is a unique number given to each order
2) OrderIDs are not reused.
3) The CustomerID is a unique number given to each customer
4) CustomerIDs stay with the customer forever
5) CustomerIDs are not reused
6) ProductID is a unique number given to each product the company sells.
7) ProductIDs stay with the product for as long as the product is sold by the company
8) ProductIDs are not reused.