Question

我需要得到每一行的总数，但我不能为行提取别名，因为它会给出错误。如何在下面的语句中获取行的sum（）。

select sum(Amount) as [Amount total],
       sum(balance) as [Balance Total],
       sum(Remaining) as [Remaining Total]
from MyTable

我想做点什么

select sum(Amount) as [Amount total],
       sum(balance) as [Balance Total],
       sum(Remaining) as [Remaining Total],
       [Amount total]+[Balance Total]+[Remaining Total] as Total
from MyTable

Answer 1

重复表达式，使用子查询或使用CTE。这是第一选择：

select sum(Amount) as [Amount total],
       sum(balance) as [Balance Total],
       sum(Remaining) as [Remaining Total],
       (sum(Amount) + sum(balance) + sum(Remaining)) as Total
from MyTable;

列别名在定义它们的同一级别无法识别。

Answer 2

试试这个：

SELECT SUM(Amount) AS [Amount total], 
       SUM(balance) AS [Balance Total], 
       SUM(Remaining) AS [Remaining Total], 
       SUM(Amount + balance + Remaining) AS Total
FROM MyTable

Answer 3

您不必对SUMS进行求和，只需对它们正在求和的列进行求和，您将获得总和：

select sum(Amount) as [Amount total],sum(balance)[Balance Total]
,sum(Remaining)[Remaining Total],SUM(Amount+Balance+Remaining) as Total
    from MyTable

如何在sql中获取行的总和

3 个答案: