我有一个复杂的查询，几乎可以产生我需要的一切 见：
SELECT suppliers_prods.reference,products.id,products.price,products.current,suppliers_prods.price,
suppliers_prods.costoverhead,stock.total,stock.location,products.maxstock,manufacturers.name,products.title,products.reference,products.weight,suppliers.name,products.manufacturerref,stock.location,suppliers_prods.adjusted_overhead,
suppliers_prods.1_of_trade_perc,suppliers_prods.more_than,suppliers_prods.multiple_of_trade_perc,
suppliers_prods.last_order_amount,DATE_FORMAT(suppliers_prods.last_ordered,"%d-%m-%Y %T") AS supplier_last_ordered,prodtypes.description AS prodtype, DATE_FORMAT(MAX(orders.orderdate),"%d-%m-%Y %T") AS item_last_ordered, SUM(wishlist.qty) AS notify_waiting_qty
FROM products
INNER JOIN prodtypes ON products.prodtype=prodtypes.id
INNER JOIN stock ON products.id=stock.prodid
INNER JOIN suppliers_prods ON suppliers_prods.prodid=products.id
INNER JOIN suppliers ON suppliers_prods.supplierid=suppliers.id
INNER JOIN manufacturers ON products.manufacturer=manufacturers.id
LEFT JOIN wishlist on products.id=wishlist.prodid
LEFT JOIN order_items ON products.id=order_items.itemid
LEFT JOIN orders ON order_items.orderid=orders.id
WHERE products.current = "1" AND suppliers.name = "ICS"
GROUP BY products.id
ORDER BY products.current,stock.total;
问题是字段notify_waiting_qty中包含错误的数据。
我可以运行以下查询：
select suppliers_prods.reference,wishlist.prodid,count(DISTINCT wishlist.custid) as qty
from wishlist
INNER JOIN products ON products.id=wishlist.prodid
INNER JOIN suppliers_prods ON suppliers_prods.prodid=products.id
where
DATE_ADD(wishlist.date_added,INTERVAL 2 YEAR) >= CURDATE() and
wishlist.notified = "0"
group by wishlist.prodid
这为我提供了字段QTY，其中包含字段suppliers_prods.reference的正确信息。
我可以将数据组合在一起的唯一方法是在Excel中：我将查询1的结果粘贴到Excel的第1页，然后将2查询到第2页。
然后在工作表notify_waiting_qty上使用字段suppliers_prods.reference我查找了sheet2并查找了QTY的值并将其放入工作表
因此SQL查询1的结果是（它是csv文件的副本）：
suppliers_prods.reference,products.id,products.price,products.current,suppliers_prods.price,suppliers_prods.costoverhead,stock.total,stock.location,products.maxstock,manufacturers.name,products.title,products.reference,products.weight,suppliers.name,products.manufacturerref,stock.location,suppliers_prods.adjusted_overhead,suppliers_prods.1_of_trade_perc,suppliers_prods.more_than,suppliers_prods.multiple_of_trade_perc,suppliers_prods.last_order_amount,.supplier_last_ordered,prodtypes.prodtype,.item_last_ordered,.notify_waiting_qty
MA-09,2686,15,1,3.11,1.17,0,M1-R3-S4-P2-D1,15,ICS,ICS M4 Hop Up Unit,ICS-MA-09,99,ICS,MA-09,M1-R3-S4-P2-D1,1.17,5.56,1,5.56,15,31/03/2016 15:28,Hopup,15/05/2016 18:40,16378
查询2的结果：
suppliers_prods.reference,wishlist.prodid,.qty
MA-09,2686,2
因此，在我的Excel电子表格中并使用Excel命令，我可以将MA-09 QTY值2输入到MA-09行字段notify_waiting_qty中，从而产生一行包含我需要查看的所有数据：< / p>
suppliers_prods.reference,products.id,products.price,products.current,suppliers_prods.price,suppliers_prods.costoverhead,stock.total,stock.location,products.maxstock,manufacturers.name,products.title,products.reference,products.weight,suppliers.name,products.manufacturerref,stock.location,suppliers_prods.adjusted_overhead,suppliers_prods.1_of_trade_perc,suppliers_prods.more_than,suppliers_prods.multiple_of_trade_perc,suppliers_prods.last_order_amount,.supplier_last_ordered,prodtypes.prodtype,.item_last_ordered,.notify_waiting_qty
MA-09,2686,15,1,3.11,1.17,0,M1-R3-S4-P2-D1,15,ICS,ICS M4 Hop Up Unit,ICS-MA-09,99,ICS,MA-09,M1-R3-S4-P2-D1,1.17,5.56,1,5.56,15,31/03/2016 15:28,Hopup,15/05/2016 18:40,2
我用来从表2到表1获取数据的Excel语句是：
=IF(ISNA(VLOOKUP(A2, Sheet2!$A$1:$O$2999,3, FALSE)),0,VLOOKUP(A2, Sheet2!$A$1:$O$2999,3, FALSE))
我要求的可能吗？
如果是，我该如何编码
我认为Union会为同一个suppliers_prods.reference提供2行数据，但我只想为每个suppliers_prods.reference提供一行数据。
查询1上复杂代码的原因是我需要最新的订单日期值，这段代码让我知道了。