I'd like to be able to take a ref cursor and transform it by selecting from it into another ref cursor. For example, something like this:

```
begin
declare c_cur sys_refcursor;
        c_cur2 sys_refcursor;

open c_cur for 
  select 1 from dual;

open c_cur2 for
  select 1
    from c_cur
   where 1 = 2;

end;
/

```

Is it possible in Oracle to select FROM the results of a ref cursor, in a SELECT statement?