What is correct query ?

Question

I have two tables: tmp and tmp1. the output should be, for each cno in tmp, its pno should be ALL in the tmp1. The correct output should be '1111'.
I have written a query based on 1111, it works. But how could I extend to 2222, 3333 .... ? what is correct query ?
Thanks.
select * from tmp;
CNO                    PNO                   
1111                   10506                 
1111                   10507                 
1111                   10508                 
1111                   10509                 
2222                   10601                 
2222                   10701                 
3333                   10800                 
3333                   10900                 
8 rows selected
select * from tmp1;
PNO                   
10506                 
10507                 
10508                 
10509                 
10701                 
10800                 
6 rows selected
select * from tmp where
cno = 1111
and
not EXISTS(select pno from tmp  where cno = 1111 minus select pno from tmp1)
CNO                    PNO                   
1111                   10506                 
1111                   10507                 
1111                   10508                 
1111                   10509                 
4 rows selectedEdited by: user533361 on Sep 27, 2009 1:47 PM

Answer 1

with tmp as (
             select 1111 cno,10506 pno from dual union all
             select 1111,10507 from dual union all
             select 1111,10508 from dual union all
             select 1111,10509 from dual union all
             select 2222,10601 from dual union all
             select 2222,10701 from dual union all
             select 3333,10800 from dual union all
             select 3333,10900 from dual
    tmp1 as (
             select 10506 pno from dual union all
             select 10507 from dual union all
             select 10508 from dual union all
             select 10509 from dual union all
             select 10701 from dual union all
             select 10800 from dual
select  cno
  from  tmp t1,
        tmp1 t2
  where t1.pno = t2.pno(+)
  group by cno
  having count(t1.pno) = count(t2.pno)
       CNO
      1111
SQL> SY.