的SQL Server 2012：合并两行成一排

Question

我有这个在我的表

ID  Routing  
01  WFM 
01  ESCALATE 
02  WFM 
02  ESCALATE 

而且我想显示（SQL SELECT查询），以类似下面

ID  Routing1 Routing2  
01  WFM  ESCALATE 
02  WFM  ESCALATE 

Answer 1

select a.id,a.routing as routing1,b.routing as routing2 
from table1 as a join table1 as b 
on 
a.id=b.id 

这可以是您的基本查询。

为了达到你的效果。你可以使用类似的东西。

select id,routing1,routing2 
from (select a.id,a.routing as routing1,b.routing as routing2 
from table1 as a join table1 as b 
on 
a.id=b.id) 
where routing1 != routing2; 

我想你可以只添加a.routing！= b.routing的基本查询，而不是与第二个查询

Answer 2

select id, max(routing) as routing1, 
      (select min(routing) from route r2 where r2.id = r1.id) as routing2 
    from route r1 
    group by id 

这完美的作品，成交只有当你有2条记录与此相同。