如何在sql中垂直获取列总数

我已经得到了水平方向的总数，我想得到最后一行的蓝色，我使用了这个查询

SELECT 
    DepartmentName,
    SUM(CASE WHEN Risk = 'High' THEN 1 ELSE 0 END) High,
    SUM(CASE WHEN Risk = 'Medium' THEN 1 ELSE 0 END) Medium,
    SUM(CASE WHEN Risk = 'Low' THEN 1 ELSE 0 END) Low,
    SUM(CASE WHEN Risk = 'High' THEN 1 ELSE 0 END) 
        + SUM(CASE WHEN Risk = 'Medium' THEN 1 ELSE 0 END) 
        + SUM(CASE WHEN Risk = 'Low' THEN 1 ELSE 0 END) Total
FROM    
    TableName
GROUP BY 
    DepartmentName

如何获取最后一行？

这可以通过

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通过使用

汇总

SELECT 
      COALESCE(DepartmentName, 'Total') DepartmentName,
      SUM(CASE WHEN Risk = 'High' THEN 1 ELSE 0 END) High,
      SUM(CASE WHEN Risk = 'Medium' THEN 1 ELSE 0 END) Medium,
      SUM(CASE WHEN Risk = 'Low' THEN 1 ELSE 0 END) Low,
      SUM(CASE WHEN Risk IN ('High', 'Medium', 'Low') THEN 1 ELSE 0 END) Total   
FROM table
GROUP BY DepartmentName with ROLLUP

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我能想到的最简单的

select Department, High, Medium, Low, Total from MY_TABLE
union all
select 'Total', sum(High), sum(Medium), sum(Low), sum(Total)  from MY_TABLE

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您使用的是什么版本的SQL？SQL server2014@KalpeshKoli-如果您访问该文档链接，请另外注意-空括号（）指定一个总计组，该组对查询中指定的所有组求和。

select Department, High, Medium, Low, Total from MY_TABLE
union all
select 'Total', sum(High), sum(Medium), sum(Low), sum(Total)  from MY_TABLE