Question

我想使用Union将计划和实际数据合并到1个视图中。为此我使用两个内连接来使行匹配 - 然后我使用union语句。目前我分3步完成 - 现在我想将所有这些合并为1步。

实施例

创建vPlan2

Select 
   a.step, 
   a.[planned user], 
   b.[actual user], 
   a.[invoice plan] as 'invoice'
from vPlan a
inner join vActuals b on a.step = b.step
group by 
   a.step, 
   a.[planned user], 
   b.[actual user], 
   a.[invoice plan]

创建vActuals2

Select 
    a.step, 
    b.[planned user], 
    a.[actual user], 
    a.[invoice actuals] as 'invoice'
from vActuals a
inner join vPlan b on a.step = b.step
group by 
    a.step, 
    a.[actual user], 
    b.[planned user], 
    a.[invoice actuals]

制作vplanandactuals

select 
    'Plan' as type, 
    a.step, 
    a.[planned user], 
    a.invoice, 
    a.[actual user]
from vPlan2 a
group by 
    a.step, 
    a.[planned user], 
    a.invoice, 
    a.[actual user]
Union
select 
    'Actuals', 
    b.step, 
    b.[planned user], 
    b.invoice, 
    b.[actual user]
from vActuals2 b
group by 
    b.step, 
    b.[planned user], 
    b.invoice, 
    b.[actual user]

Answer 1

与@ texastonie的答案类似，但将group by替换为select distinct：

Select Distinct
   'Plan' as type, 
   vPlan.step, 
   vPlan.[planned user], 
   vPlan.[invoice plan] as 'invoice',
   vActuals.[actual user] 
from vPlan
inner join vActuals
  on vPlan.step = vActuals.step
union
Select Distinct
    'Actuals' as type, 
    vActuals.step, 
    vPlan.[planned user], 
    vActuals.[invoice actuals] as 'invoice',
    vActuals.[actual user] 
from vActuals
inner join vPlan
  on vActuals.step = vPlan.step
;

Answer 2

我认为你在寻找的是：

Select 
   'Plan' as Type,
   a.step, 
   a.[planned user], 
   b.[actual user], 
   a.[invoice plan] as 'invoice'
from vPlan a
inner join vActuals b on a.step = b.step
group by 
   a.step, 
   a.[planned user], 
   b.[actual user], 
   a.[invoice plan]

union all

Select 
    'Actuals' as Type,
    a.step, 
    b.[planned user], 
    a.[actual user], 
    a.[invoice actuals] as 'invoice'
from vActuals a
inner join vPlan b on a.step = b.step
group by 
    a.step, 
    a.[actual user], 
    b.[planned user], 
    a.[invoice actuals]

如何将2个连接包含在union语句中

2 个答案: