Union All查询的语法不正确(Incorrect syntax for Union All query)

 我正在尝试将所有查询与工会结合起来： 
 
use SalesDWH
go


select cast(COUNT([specimen id]) as varchar) +'|'+[practice name]+'|'+b.[mlis practice id]+'|'+[practice code]+'|'+[Requesting Physician]+'|'+c.salesrep+'|'+
    cast(c.dateestablished as varchar)+'|'+ c.practicecity+'|'+c.practicestate
from quicklabdump a
    inner join qlmlismapping b
    on (b.[quiklab practice code] = a.[practice code])
    inner join PracticeandPhysician c
    on (a.[Requesting Physician]=c.doctorfirstname+' '+c.DOCTORLASTNAME
        and a.[practice code]=c.practicecode)
where   DATEPART(yy, [DATE entered]) = 2011
    and DATEPART(mm, [DATE entered]) = 12
group by a.[practice name],b.[mlis practice id],a.[practice code],
    a.[Requesting Physician],c.salesrep,c.dateestablished, c.practicecity,c.practicestate
order by COUNT([specimen id]) desc

union all

select cast(COUNT([specimen id]) as varchar) +'|'+[practice name]+'|'+b.[mlis practice id]+'|'+[practice code]+'|'+[Requesting Physician]+'|'+c.salesrep+'|'+
    cast(c.dateestablished as varchar)+'|'+ c.practicecity+'|'+c.practicestate
from quicklabdump a
    inner join qlmlismapping b
    on (b.[quiklab practice code] = a.[practice code])
    inner join PracticeandPhysician c
    on (a.[Requesting Physician]=c.doctorfirstname+' '+c.DOCTORLASTNAME
        and a.[practice code]=c.practicecode)
where   DATEPART(yy, [DATE entered]) = 2011
    and DATEPART(mm, [DATE entered]) = 11
group by a.[practice name],b.[mlis practice id],a.[practice code],
    a.[Requesting Physician],c.salesrep,c.dateestablished, c.practicecity,c.practicestate
order by COUNT([specimen id]) desc
 
 但我得到这个错误： 
 
Msg 156, Level 15, State 1, Line 2
Incorrect syntax near the keyword 'union'.
 
 我究竟做错了什么？ 

I am trying to combine to queries with union all:
 
use SalesDWH
go


select cast(COUNT([specimen id]) as varchar) +'|'+[practice name]+'|'+b.[mlis practice id]+'|'+[practice code]+'|'+[Requesting Physician]+'|'+c.salesrep+'|'+
    cast(c.dateestablished as varchar)+'|'+ c.practicecity+'|'+c.practicestate
from quicklabdump a
    inner join qlmlismapping b
    on (b.[quiklab practice code] = a.[practice code])
    inner join PracticeandPhysician c
    on (a.[Requesting Physician]=c.doctorfirstname+' '+c.DOCTORLASTNAME
        and a.[practice code]=c.practicecode)
where   DATEPART(yy, [DATE entered]) = 2011
    and DATEPART(mm, [DATE entered]) = 12
group by a.[practice name],b.[mlis practice id],a.[practice code],
    a.[Requesting Physician],c.salesrep,c.dateestablished, c.practicecity,c.practicestate
order by COUNT([specimen id]) desc

union all

select cast(COUNT([specimen id]) as varchar) +'|'+[practice name]+'|'+b.[mlis practice id]+'|'+[practice code]+'|'+[Requesting Physician]+'|'+c.salesrep+'|'+
    cast(c.dateestablished as varchar)+'|'+ c.practicecity+'|'+c.practicestate
from quicklabdump a
    inner join qlmlismapping b
    on (b.[quiklab practice code] = a.[practice code])
    inner join PracticeandPhysician c
    on (a.[Requesting Physician]=c.doctorfirstname+' '+c.DOCTORLASTNAME
        and a.[practice code]=c.practicecode)
where   DATEPART(yy, [DATE entered]) = 2011
    and DATEPART(mm, [DATE entered]) = 11
group by a.[practice name],b.[mlis practice id],a.[practice code],
    a.[Requesting Physician],c.salesrep,c.dateestablished, c.practicecity,c.practicestate
order by COUNT([specimen id]) desc
 
But I am getting this error:
 
Msg 156, Level 15, State 1, Line 2
Incorrect syntax near the keyword 'union'.
 
What am I doing wrong?

原文：https://stackoverflow.com/questions/8673703