Question

SELECT     
   ISNULL(Customer.Name, ' GRAND') AS CustomerName, 
   ISNULL(Item.ItemName, 'TOTAL') AS ItemName, 
   SUM(Item_Order.PriceAtDate) AS Price
FROM         
   Item_Order 
INNER JOIN
   Item ON Item_Order.ItemID = Item.ItemID 
INNER JOIN
   TheOrder ON Item_Order.OrderID = TheOrder.OrderID 
INNER JOIN
   Customer ON TheOrder.CustomerID = Customer.CustomerID
GROUP BY 
   Customer.Name, Item.ItemName, Item_Order.PriceAtDate WITH ROLLUP
ORDER BY 
   Customer.Name

结果：

CustomerName ItemName            Price
------------ ------------------- -------
GRAND        TOTAL               1380.46
Adrian       Hammer                21.88
Adrian       Hammer                21.88
Adrian       Soldering Iron        30.54
Adrian       Soldering Iron        30.54
Adrian       TOTAL                 52.42
Baker        Valve                 21.88
Baker        Valve                 21.88
Baker        TOTAL                 21.88

正如你所看到的，使用汇总给出的TOTAL加起来为30.54和21.88，它达到了52.42，但两个项目都被订购了两次。所以我需要实际的总数，而不仅仅是不同的值。

有谁知道我做错了什么？

Answer 1

我认为在价格列（Item_Order.PriceAtDate）上进行分组，你正在做的总结是导致问题：

Customer.Name, Item.ItemName, Item_Order.PriceAtDate WITH ROLLUP

尝试使用子查询

SELECT
    ISNULL(CustomerName, ' GRAND') AS CustomerName, 
    ISNULL(ItemName, 'TOTAL') AS ItemName, 
    Sum(Price) AS Price
FROM
(
SELECT     
   Customer.Name AS CustomerName,
   Item.ItemName AS ItemName,   
   Item_Order.PriceAtDate AS Price
FROM         
   Item_Order 
INNER JOIN
   Item ON Item_Order.ItemID = Item.ItemID 
INNER JOIN
   TheOrder ON Item_Order.OrderID = TheOrder.OrderID 
INNER JOIN
   Customer ON TheOrder.CustomerID = Customer.CustomerID
) as Test
GROUP BY 
   CustomerName, ItemName WITH ROLLUP
ORDER BY 
   CustomerName

ROLLUP仅汇总SQL Server 2008中的不同值

1 个答案: