REVERSE FOR LOOP

5 4 3 2 1

4 3 2 1

3 2 1

2 1

1

DECLARE

   var   VARCHAR2 (20);

BEGIN

   FOR i IN REVERSE 1 .. 5

   LOOP

      FOR j IN REVERSE 1 .. i

      LOOP

         var := var || ' ' || j;

      END LOOP;

      DBMS_OUTPUT.put_line (var);

      var := NULL;

   END LOOP;

END;