Oracle PL/SQL-Tipps

DECLARE
   CURSOR big_cur IS
   SELECT
       object_id
   FROM
       scott.big_tab;
   TYPE big_tab_type IS
       TABLE OF scott.big_tab.object_id%TYPE;
   mybig_tab  big_tab_type;
   summe      NUMBER := 0;
   teil_summe NUMBER := 0;
BEGIN
   OPEN big_cur;
   LOOP
       FETCH big_cur
       BULK COLLECT INTO mybig_tab LIMIT 100;
       FOR i IN 1..mybig_tab.count LOOP
           summe := summe + mybig_tab(i);
       END LOOP;
       EXIT WHEN big_cur%notfound;
   END LOOP;
   CLOSE big_cur;
END;
/