小编poo*_*put的帖子

当我尝试以下查询

select column2 
from table1 
group by column2 
having count(column3) = count(column1) and column5 in (1,2)

我收到此错误:

ORA-00979: not a GROUP BY expression
00979. 00000 -  "not a GROUP BY expression"

我应该写什么才能获得结果,即满足两个条件的column2

i.e. (count(column3) = count(column1) and column5 in (5,6).