在SQL查询中将别名命名为汇总？

Question

我with rollup在我的SQL查询中使用.我没有获得汇总的别名.

我的SQL是

SELECT [Column1],
       sum([Column2])
FROM   Tablea
GROUP  BY [Column2] WITH ROLLUP 

哪个回报

s       8
t       8
j       8
null    24 

如何更换NULL总排？

Answer 1

您可以GROUPING在CASE表达式中使用该函数.

SELECT CASE
         WHEN GROUPING([Column1]) = 1 THEN 'Total'
         ELSE [Column1]
       END [Column1],
       sum([Column2])
FROM   Tablea
GROUP  BY [Column1] WITH ROLLUP 

SQL小提琴

Answer 2

select 
isnull([column1],'rollup'), 
sum([column2] )
from tableA
group by [column1] 
WITH ROLLUP