问题描述
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。
解决方法
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?