Analytic function sql help

Question

Table with 2 columns pro_id,sub_ver_id. Need only 5 pro_id for each sub_ver_id
SQL> select * from test1 order by SUB_VER_ID;
PRO_ID SUB_VER_ID
1 0
2 0
3 0
4 0
5 0
6 0
10 1
15 1
16 1
11 1
12 1
PRO_ID SUB_VER_ID
13 1
14 1
11 2
12 3
I'm new to analytic function i got query as below, but not able to get an idea to limit the SRLNO to only 5 rows for each SUB_VER_ID. Any hint would be much appreciated.
select distinct sub_ver_id,pro_id, row_number () over (order by sub_ver_id) srlno
from test1 order by sub_ver_id

Answer 1

May be as below..
select *
from
select sub_ver_id,pro_id, row_number () over (partition by sub_ver_id order by null) srlno
from test1
) where srlno <=5 order by sub_ver_idThanks...