我运行以下查询:
SELECT orderdetails.sku, orderdetails.mf_item_number, orderdetails.qty, orderdetails.price, supplier.supplierid, supplier.suppliername, supplier.dropshipfees, cost = (SELECT supplier_item.price FROM supplier_item, orderdetails, supplier WHERE supplier_item.sku = orderdetails.sku AND supplier_item.supplierid = supplier.supplierid) FROM orderdetails, supplier, group_master WHERE invoiceid = '339740' AND orderdetails.mfr_id = supplier.supplierid AND group_master.sku = orderdetails.sku
我收到以下错误:
消息512,级别16,状态1,行2子查询返回的值大于1。当子查询遵循=,!=,<,<=,>,> =或将子查询用作表达式时,这是不允许的。
有任何想法吗?
试试这个:
SELECT od.Sku, od.mf_item_number, od.Qty, od.Price, s.SupplierId, s.SupplierName, s.DropShipFees, si.Price as cost FROM OrderDetails od INNER JOIN Supplier s on s.SupplierId = od.Mfr_ID INNER JOIN Group_Master gm on gm.Sku = od.Sku INNER JOIN Supplier_Item si on si.SKU = od.Sku and si.SupplierId = s.SupplierID WHERE od.invoiceid = '339740'
这将返回除cost列之外相同的多行。查看返回的不同成本值,并找出导致这些不同值的原因。然后询问某人他们想要哪个成本值,然后将条件添加到查询中以选择该成本。
cost