给定以下结果集：
---------------------------------------------------------
CustomerID Service TransType SubTotal Tax NetTotal
---------------------------------------------------------
106 A CREDIT 12.52 - 12.52
106 A CREDIT 10.07 - 10.07
106 B CREDIT 2.00 - 2.00
106 C REMOTE 5.99 - 5.99
106 C CREDIT 5.99 - 5.99
106 C CREDIT 3.99 0.30 3.69
106 C CREDIT 5.99 0.30 5.69
106 D CREDIT 5.99 - 5.99
---------------------------------------------------------
请注意，NetTotal =小计-税
请帮我计算总和（SubTotal），总和（Tax）和总和（NetTotal），以及透视的TransType，如下所示：
--------------------------------------------------------------------------
CustomerID Service Cash Check Credit Remote SubTotal Tax NetTotal
--------------------------------------------------------------------------
106 A 0 0 22.59 0 22.59 0 22.59
106 B 0 0 2.00 0 2.00 0 2.00
106 C 0 0 15.97 5.99 21.96 0.60 21.36
106 D 0 0 5.99 0 5.99 0 5.99
--------------------------------------------------------------------------
如果我仅要总结一列，那么使用PIVOT会很简单，但是我不确定如何获取这三项汇总-小计，税和NetTotal。
谢谢你的帮助！
最佳答案
这可以在没有PIVOT的情况下完成：
SELECT
CustomerID
, [Service]
, Cash = SUM(case when TransType='CASH' then SubTotal else 0 end)
, [Check] = SUM(case when TransType='CHECK' then SubTotal else 0 end)
, Credit = SUM(case when TransType='CREDIT' then SubTotal else 0 end)
, [Remote] = SUM(case when TransType='REMOTE' then SubTotal else 0 end)
, SubTotal = SUM(SubTotal)
, Tax = SUM(Tax)
, NetTotal = SUM(NetTotal)
FROM YourTable
GROUP BY CustomerId, [Service]
使用PIVOT，它变得相当复杂。我想到的最简单的方法是在另一个查询中计算SubTotal，Tax和NetTotal，然后将查询与联接合并。下面的例子；为了简化查询，我舍弃了现金和支票。
SELECT
a.CustomerId
, a.Service
, Credit = a.Credit
, [Remote] = a.[Remote]
, SubTotal = SUM(b.SubTotal)
, Tax = SUM(b.Tax)
, NetTotal = SUM(b.NetTotal)
FROM (
SELECT
CustomerId
, [Service]
, Credit = SUM(Credit)
, [Remote] = SUM([Remote])
FROM YourTable a
PIVOT
(
SUM(SubTotal) FOR [TransType] IN ([Credit],[Remote])
) pvt
GROUP BY CustomerId, [Service]
) a
INNER JOIN YourTable b
ON a.CustomerID = b.CustomerID
AND a.[Service] = b.[Service]
GROUP BY a.CustomerId, a.[Service], a.Credit, a.[Remote]