无法通过连接获得选择查询的精确结果

Question

这是我的查询

 select count(fp.kat),fs.cid,fcc.cid
 from tbl1 fs
left join tbl2 fp  on fs.cid=fp.cid
left join tbl3 fcc on fcc.cid=fp.kat
group by fcc.cid,fs.cid

输出

count(fp.kat)       cid         cid

 3                1          3


 2                2          3

1                 3           4

2                 4           4

但我想将输出作为

   count       cid
     2            3

     2             4

我不知道这个问题，请让我知道

Answer 1

select count(*), x
from
(
    select count(fp.kat),fs.cid,fcc.cid as x
    from tbl1 fs
    left join tbl2 fp  on fs.cid=fp.cid
    left join tbl3 fcc on fcc.cid=fp.kat
    group by fcc.cid,fs.cid
) y
group by x