我有一个问题。我有2个查询
[ORDERS] [Products] [CUSTOMER] [QTY]
........1...............A...............X...............2
........2...............A...............Y...............3
........3...............B...............Z...............5
........4...............C...............X...............1
........5...............A...............P...............1
第二个查询
[ID_PROD] [Products] [QTY_AVAILABLE]
........1...............A...............5
........2...............B...............5
........3...............C...............0
........4...............D...............0
所以,基本上我必须找出哪个客户不会完成订单。
如果我必须使用宏或查询,
,这无关紧要感谢您的帮助。