How to run the sys_refcursor in a procedure

Hello
How to call the following procedure
create or replace procedure 
  proc_ref_cursor (rc in sys_refcursor) as

  v_a number;
  v_b varchar2(10);
  
begin
  loop
    fetch rc into v_a, v_b;
    exit when rc%notfound;
    dbms_output.put_line(v_a || ' ' || v_b);
  end loop;
end;
/
Guide me so call this procedure / / I have tried but no luck 
SQL> create or replace procedure
  2    proc_ref_cursor (rc in sys_refcursor) as
  3
  4    v_a number;
  5    v_b varchar2(10);
  6
  7  begin
  8    loop
  9      fetch rc into v_a, v_b;
 10      exit when rc%notfound;
 11      dbms_output.put_line(v_a || ' ' || v_b);
 12    end loop;
 13  end;
 14  / 

Procedure created.

SQL> set serveroutput on
SQL>
SQL> ed
Wrote file afiedt.buf

  1  declare
  2    r sys_refcursor;
  3  begin
  4    open r for
  5      select 1, '2' from dual;
  6    proc_ref_cursor (r);
  7    close r;
  8* end;
  9  /
1 2

PL/SQL procedure successfully completed.

Published by: bluefrog on February 5, 2010 10:12

Published by: I forgot to close the cursor!

Tags: Database

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