Rownum in a select sub query

Question

I could use some help
I have
SQL>
Select a.ssn
, a.first_name
, c.dep_ssn
from
employee a,
dependent c
where
a.ssn = c.ssn
and a.type = 'UNION'
I can have none to many dependents
I want to have
Select a.ssn,
a.first_name,
(select count(*) from dependent c2
where c2.ssn = a.ssn),
(select distinct c3.dep_ssn
from (Select c3.*,rownum rnum OVER (ORDER BY ssn) as MYRNM
From dependent c3
where c3.ssn = a.ssn)
where myrnm = 2)
from
from
employee a,
dependent c
where
a.ssn = c.ssn
and a.type = 'UNION'
The goal is to have all dependents in one record so it would be ssn, dep_ssn1, dep_ssn2, dep_ssn n
Any idea on the best way to do this. I am not getting my inner sub selects right

Answer 1

I think you are talking about the famous "pivoting". Check this link
http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:595725000346503967
If the above link doesn't give you what you want, search for pivoting keyword in google or in this site. You will find loads of examples.