Question

我正在使用SQL Server 2008.我想获得表的行总计，并希望合并总列的2个字符串列名。我有下表数据

Region Test  taken  Nottaken 
India  AA    1      0 
UK     AS    3      4 
US     AF    1      1

我想要结果集如下

Region Test  taken  Nottaken Total 
India  AA    1      0        1 
UK     AS    3      4        7 
US     AF    1      1        2 
total        5      5        10

如何编写查询？

Answer 1

您可以使用UNION来添加总行，如下所示：

SELECT * FROM(
    SELECT region,test,taken,nottaken,taken+nottaken as total
    FROM YourTable
    UNION 
    SELECT 'region','test',sum(taken),sum(nottaken) ,sum(nottaken+taken)
    FROM YourTable)
ORDER BY CASE WHEN region <> 'region' then 0 else 1 end

Answer 2

只需在select语句中进行数学运算，将两列一起添加......

Select Region, Test, Taken, NotTaken, Taken+notTaken as total
from table

SQL查询以获得行总计

2 个答案: