order_item_id,order_id,product_id,quantity,unit_price,discount,subtotal
OI001,O1001,P001,1,60,0,60
OI002,O1001,P011,1,90,0,90
OI003,O1001,P014,1,55,0,55
OI004,O1001,P003,1,65,0,65
OI005,O1002,P002,1,80,10,72
OI006,O1002,P012,1,95,0,95
OI007,O1003,P011,2,90,0,180
OI008,O1003,P007,1,190,20,152
OI009,O1003,P013,1,85,0,85
OI010,O1004,P006,1,150,0,150
OI011,O1005,P003,1,65,0,65
OI012,O1005,P015,1,60,0,60
OI013,O1006,P007,1,190,0,190
OI014,O1006,P009,1,95,0,95
OI015,O1006,P004,1,75,0,75