Cursor with in a REF CURSOR

Question

Hi All,
I am having a REF cursor returned by a function which contains a CURSOR with in its select statement. Can any one please let me know how to fetch these values into variable for further processing. A sample query for my REF CURSOR is
Select dept_id,
cursor(
select emp_id, emp_name
from emp e
where e.dept_id = d.dept_id)
from dept d

Answer 1

SQL> l
  1  create function fun
  2     return sys_refcursor
  3  is
  4     retval sys_refcursor;
  5  begin
  6     open retval for select object_id
  7                          , cursor (select dummy
  8                                      from dual
  9                                   )
10                       from all_objects
11                      where rownum <= 10;
12     return retval;
13* end fun;
SQL>
SQL>
SQL>
SQL> var rc refcursor
SQL> exec :rc := fun
PL/SQL procedure successfully completed.
SQL> print :rc
OBJECT_ID CURSOR(SELECTDUMMYFR
        20 CURSOR STATEMENT : 2
CURSOR STATEMENT : 2
D
        51 CURSOR STATEMENT : 2
CURSOR STATEMENT : 2
D
X
        26 CURSOR STATEMENT : 2
CURSOR STATEMENT : 2
D
X
10 rows selected.
SQL>