union话语急_SQL

union语句急急急
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--------------------

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
group by 时间

------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
group by 时间