用MAX（列值）选择行，DISTINCT用SQL中的另一列

-3

我有两个表，我有困难。 OrderHed & UD11。 OrderHed对于OrderNum = 70960有1个值，但UD11对于70960有4个记录。用MAX（列值）选择行，DISTINCT用SQL中的另一列

我试图将UD11.Key5的最大值作为不同的记录返回 - 我做错了什么？

谢谢！

SELECT TOP (100) PERCENT OrderHed.OrderNum, 
    OrderHed.OpenOrder, 
    OrderHed.OrderDate, 
    OrderRel.Plant, 
    OrderHed.EntryPerson, 
    OrderHed.Company, 
    Erp.Customer.CustID, 
    Erp.Customer.NAME, 
    Erp.InvcDtl.InvoiceNum, 
    SUM(OrderDtl.ExtPriceDtl) AS Expr1, 
    OrderHed.PONum, 
    Ice.UD11.Key1, 
    Ice.UD11.Key2, 
    Ice.UD11.Key3, 
    Ice.UD11.Key4, 
    MAX(Ice.UD11.Key5) AS Expr2, 
    Ice.UD11.Character01, 
    Ice.UD11.Number01, 
    Ice.UD11.Date01, 
    Ice.UD11.Date02, 
    Ice.UD11.Date03, 
    Ice.UD11.ShortChar01, 
    Ice.UD11.ShortChar02, 
    Ice.UD11.ShortChar03, 
    Ice.UD11.ShortChar04, 
    Ice.UD11.ShortChar05, 
    OrderHed.OrderComment 
FROM Erp.Customer 
RIGHT JOIN Ice.UD11 
RIGHT JOIN Erp.OrderHed AS OrderHed ON Ice.UD11.Company = OrderHed.Company 
    AND Ice.UD11.Key1 = OrderHed.OrderNum 
LEFT JOIN Erp.OrderRel AS OrderRel 
RIGHT JOIN Erp.OrderDtl AS OrderDtl ON OrderRel.Company = OrderDtl.Company 
    AND OrderRel.OrderNum = OrderDtl.OrderNum 
    AND OrderRel.OrderLine = OrderDtl.OrderLine ON OrderHed.Company = OrderDtl.Company 
    AND OrderHed.OrderNum = OrderDtl.OrderNum ON Erp.Customer.Company = OrderHed.Company 
    AND Erp.Customer.CustNum = OrderHed.CustNum LEFT JOIN Erp.InvcDtl RIGHT JOIN Erp.ShipDtl ON Erp.InvcDtl.Company = Erp.ShipDtl.Company 
    AND Erp.InvcDtl.OrderNum = Erp.ShipDtl.OrderNum 
    AND Erp.InvcDtl.OrderLine = Erp.ShipDtl.OrderLine 
    AND Erp.InvcDtl.OrderRelNum = Erp.ShipDtl.OrderRelNum ON OrderRel.Company = Erp.ShipDtl.Company 
    AND OrderRel.OrderNum = Erp.ShipDtl.OrderNum 
    AND OrderRel.OrderLine = Erp.ShipDtl.OrderLine 
    AND OrderRel.OrderRelNum = Erp.ShipDtl.OrderRelNum GROUP BY OrderHed.OrderNum, 
    OrderHed.OrderDate, 
    OrderRel.Plant, 
    OrderHed.EntryPerson, 
    OrderHed.Company, 
    OrderHed.OpenOrder, 
    Erp.Customer.CustID, 
    Erp.Customer.NAME, 
    Erp.InvcDtl.InvoiceNum, 
    OrderHed.PONum, 
    Ice.UD11.Key1, 
    Ice.UD11.Key2, 
    Ice.UD11.Key3, 
    Ice.UD11.Key4, 
    Ice.UD11.Character01, 
    Ice.UD11.Number01, 
    Ice.UD11.Date01, 
    Ice.UD11.Date02, 
    Ice.UD11.Date03, 
    Ice.UD11.ShortChar01, 
    Ice.UD11.ShortChar02, 
    Ice.UD11.ShortChar03, 
    Ice.UD11.ShortChar04, 
    Ice.UD11.ShortChar05, 
    OrderHed.OrderComment HAVING (OrderHed.Company = N'011') 
    AND (Erp.InvcDtl.InvoiceNum IS NULL) 
    AND (OrderHed.OrderNum = 70960)

来源

2016-04-15 Machzy

SELECT * 
FROM (
     SELECT *, 
       ROW_NUMBER() OVER (PARTITION BY OrderNum ORDER BY key5 DESC) rn 
     FROM (... /* my huge query */) q 
     ) q 
WHERE rn = 1

来源

2016-04-15 16:17:41 Quassnoi

所以我希望把另一个SELECT语句里面我FROM语句？ – Machzy

@Machzy：是的，把你的整个查询放在parens里面，别忘了别名（关闭paren后的'q'） – Quassnoi

用MAX（列值）选择行，DISTINCT用SQL中的另一列

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