The Happy Valley food Coop (HVFC) keeps a database in which its members balance, their orders and possible suppliers and prices are recorded The tables below show some sample data. Table (a) gives data about members; Table (b) shows the ORDCRS relationship and (C) gives data about suppliers, their addresses and the prices they charge for the items they are willing to supply. The Happy Valley food Coop (HVFC) keeps a database in which its members balance, their orders and possible suppliers and prices are recorded The tables below show some sample data. Table (a) gives data about members; Table (b) shows the ORDCRS relationship and (C) gives data about suppliers, their addresses and the prices they charge for the items they are willing to supply