select 时间 = Case when month(CreateDate) in (1,2,3) then '1季度' when month(CreateDate) in (4,5,6) then '2季度'
when month(CreateDate) in (7,8,9) then '3季度' when month(CreateDate) in (10,11,12) then '4季度' end ,
sum(AllOutput) as 削减量,sum(AllAllowOutput) as 排放量,sum(AllPreOutput) as 批复量
from DirtyOutputControl where AliasName='化学需氧量' and Year(CreateDate) = Year(getdate())
group by
Case when month(CreateDate) in (1,2,3) then '1季度' when month(CreateDate) in (4,5,6) then '2季度'
when month(CreateDate) in (7,8,9) then '3季度' when month(CreateDate) in (10,11,12) then '4季度' end
union
select '1季度' as [quarter],0 as AllOutput,0 as AllAllowOutput,0 as AllPreOutput
union
select '2季度' as [quarter],0 as AllOutput,0 as AllAllowOutput,0 as AllPreOutput
union
select '3季度' as [quarter],0 as AllOutput,0 as AllAllowOutput,0 as AllPreOutput
union
select '4季度' as [quarter],0 as AllOutput,0 as AllAllowOutput,0 as AllPreOutput
查询出的数据是这样的子的
1季度 NULL 2.00000 2.00000
1季度 0.00000 0.00000 0.00000
2季度 NULL NULL NULL
2季度 0.00000 0.00000 0.00000
3季度 0.00000 0.00000 0.00000
4季度 0.00000 0.00000 0.00000
我想查询出的效果是这样子的
1季度 0.00000 2.00000 2.00000
2季度 0.00000 0.00000 0.00000
3季度 0.00000 0.00000 0.00000
4季度 0.00000 0.00000 0.00000
------解决方案--------------------
加一个ISNULL(column,0)看看
------解决方案--------------------
select 时间,sum(削减量),sum(排放量),sum(批复量)
from (
select 时间 = Case when month(CreateDate) in (1,2,3) then '1季度' when month(CreateDate) in (4,5,6) then '2季度'
when month(CreateDate) in (7,8,9) then '3季度' when month(CreateDate) in (10,11,12) then '4季度' end ,
sum(AllOutput) as 削减量,sum(AllAllowOutput) as 排放量,sum(AllPreOutput) as 批复量
from DirtyOutputControl where AliasName='化学需氧量' and Year(CreateDate) = Year(getdate())
group by
Case when month(CreateDate) in (1,2,3) then '1季度' when month(CreateDate) in (4,5,6) then '2季度'
when month(CreateDate) in (7,8,9) then '3季度' when month(CreateDate) in (10,11,12) then '4季度' end
union
select '1季度' as [quarter],0 as AllOutput,0 as AllAllowOutput,0 as AllPreOutput
union
select '2季度' as [quarter],0 as AllOutput,0 as AllAllowOutput,0 as AllPreOutput
union
select '3季度' as [quarter],0 as AllOutput,0 as AllAllowOutput,0 as AllPreOutput
union
select '4季度' as [quarter],0 as AllOutput,0 as AllAllowOutput,0 as AllPreOutput
) x