数据库主要模型：网络型 Suppd Suppliermr Supplier name 口用网状结 Imventory record 构表示实 Item number tem description Unit price Quantity on hand Warehouse record 体及其之 Warehouse location Size (a)Structure 间联系 2147 EVANS SUPPLY 2895 WESTERN MFG 3245A-1 PRODUCTS 1537 SHORTS... 2719 T-SHIRT· 4205s00KS. 5501 CAP NORTH 20300 SOUTH 25000 (b)Occurrence 粥处授份氨多方爱 UNNERSITY OF INTERNATIONAL BUSINESS AND ECONOMCS数据库主要模型：网络型 †用网状结 构表示实 体及其之 间联系