Question

目前我的查询看起来像这样

Select A, B,  count (C) as Quantity, sum (D) as Fee,
       (select ABC from Mappings where MT = A) as 'Dog',
       (select ACD from Mappings where MT = A) as 'Cat'
from @mt
where A in (select MT from Mappings where AED in (@Cli))
group by A, B

目前我的数据正在对A上的数据进行计数和求和，但我希望数据能够被Cat计算和驯服。

有没有办法将数据分组到另一列

我正在使用t-sql

感谢任何帮助

Answer 1

由于A或B没有进行汇总计算，因此它们都需要保留在GROUP BY子句中。如果您在最终结果中不需要那些（或“狗”），您可以尝试以下方法：

Select (select ACD from Mappings where MT = A) as 'Cat'
count (C) as Quantity, 
sum (D) as Fee
from @mt
where A in (select MT from Mappings where AED in (@Cli))
group by (select ACD from Mappings where MT = A)

如何对单独的数据集进行分组

1 个答案: