ms sql错误：关键字'on'附近的语法不正确

Question

select * 
from other table inner join 
(
select Count(*), 
F1,F2,F3 
from Table 
group by F1,F2,F3 
) on F1 = OtherF 

关键字'on'附近的语法错误。

Answer 1

你再选择需要进行别名：

select * 
from other AS o 
inner join (select Count(*), F1,F2,F3 
      from Table 
      group by F1,F2,F3) AS x on F1 = o.OtherF 

Answer 2

您需要别名子查询

select * from other table inner join (select Count(*), F1,F2,F3 from Table group by F1,F2,F3) s on s.F1 = OtherF