How we can pass the list of variable from ref cursor ??

Question

pls explain with example

Answer 1

Simple example:
SQL> create table t as select level col from dual connect by level <= 10;
Table created.
SQL> create or replace procedure myproc
  2    ( p_num_list in sys.odcinumberlist
  3    , p_ref out sys_refcursor
  4    )
  5  as
  6  begin
  7    open p_ref for select col
  8                   from   t
  9                   where  col in (select * from table(p_num_list));
10  end;
11  /
Procedure created.
SQL> var rc refcursor
SQL> set autoprint on
SQL> exec myproc(sys.odcinumberlist(1,2,3), :rc);
PL/SQL procedure successfully completed.
       COL
         1
         2
         3
3 rows selected.
SQL> exec myproc(sys.odcinumberlist(1), :rc);
PL/SQL procedure successfully completed.
       COL
         1
1 row selected.
Search http://asktom.oracle.com for more examples...
Also, see:
The Tom Kyte Blog: Varying in lists...