Question

这是我的第一个小组，我尝试执行以下操作：

按分支，帐户和参考编号分组
将分组的项目添加到一起，然后将组列TaxAmount和Amount汇总为总列。

这是我所拥有的，但它没有编译：

SELECT        SUM(SUM(Amount) + SUM(TaxAmount)) AS Total
FROM            Truck.PpsTransaction
GROUP BY ReferenceNumber, Branch, AccountNumber

我做错了什么？

Answer 1

SELECT ReferenceNumber, Branch, AccountNumber, SUM(Amount + TaxAmount) AS Total
  FROM Truck.PpsTransaction
 GROUP BY ReferenceNumber, Branch, AccountNumber

Answer 2

在这种情况下，Rollup应该可以正常运行：

SELECT   ReferenceNumber, Branch, AccountNumberReferenceNumber,
         SUM(Amount) GroupAmount, Sum(TaxAmount), GroupTax,
         SUM(Amount + TaxAmount) AS GroupTotal
FROM     Truck.PpsTransaction
GROUP BY ReferenceNumber, Branch, AccountNumber WITH ROLLUP

通过总和查询混淆了我的小组

2 个答案: