SQL server用于每个不同的总和

我想得到一份清单，其中包含不同国家的名称，每个国家的雇员人数。我不能在SQL server中使用for each循环。有什么方法可以实现我想要的吗？我可以使用where country='input country'，但我不想对每个国家都这样做

Select   distinct Country,
     SUM(Test.[Number of Manager]) over () AS 'Number of Parts Staff/Manager',
     Count(Test.[Name]) over () AS 'Number of Test'

From Test;

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我认为您正在寻找：

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不要使用

DISTINCT

，而应使用

分组方式

：

Select Country,
       SUM([Number of Manager]) AS 'Number of Parts Staff/Manager',
       Count([Name]) AS 'Number of Test'
From Test
GROUP BY Country

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您可以使用

pation by

Select   Country,
     SUM(Test.[Number of Manager]) over (partition by Country order by Country) AS 'Number of Parts Staff/Manager',
     Count(distinct Test.[Name]) over (partition by Country Country) AS 'Number of Test'

From Test;

select country,Count(distinct Test.[Name]) AS 'Number of Test', SUM(Test.[Number of Manager]) AS 'Number of Parts Staff/Manager' from test
group by country

或者使用按国家分组的非常简单的方法

Select   Country,
     SUM(Test.[Number of Manager]) over (partition by Country order by Country) AS 'Number of Parts Staff/Manager',
     Count(distinct Test.[Name]) over (partition by Country Country) AS 'Number of Test'

From Test;

select country,Count(distinct Test.[Name]) AS 'Number of Test', SUM(Test.[Number of Manager]) AS 'Number of Parts Staff/Manager' from test
group by country

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你需要按国家分组，为什么要否决这个问题？这背后的逻辑是什么？我没有投反对票，但我看到很多“rtfm”问题被投反对票，也许这就是原因…可能是错误消息的重复，错误消息不可能来自我上面展示的SQL。请确保您已将

总和

和

计数

行更改为匹配。因此，将

OVER（）

部分移除。