Oracle PL/SQL-Tipps

DECLARE
   TYPE big_tab_type IS
       TABLE OF scott.big_tab.object_id%TYPE;
   mybig_tab big_tab_type;
   summe     NUMBER := 0;
BEGIN
   SELECT
       object_id
   BULK COLLECT
   INTO mybig_tab
   FROM
       scott.big_tab;
   FORALL i IN mybig_tab.first..mybig_tab.last
       UPDATE emp2
       SET
           object_name = object_name
       WHERE
           object_id = mybig_tab(i);
END;
/ 

REM Zweite Variante (mit zwei Arrays!) 

DECLARE
   TYPE emp_tab_type IS
       TABLE OF scott.emp%rowtype;
   TYPE pk_tab_type IS
       TABLE OF scott.emp.empno%TYPE; -- INDEX BY BINARY_INTEGER; 
   emp_tab emp_tab_type;
   emp_pk  pk_tab_type;
BEGIN
   SELECT
       e.*
   BULK COLLECT
   INTO emp_tab
   FROM
       scott.emp e;
   emp_pk := pk_tab_type();
   FOR i IN emp_tab.first..emp_tab.last LOOP
       emp_pk.extend;
       emp_pk(i) := emp_tab(i).empno;
   END LOOP;
   FORALL i IN emp_pk.first..emp_pk.last
       UPDATE emp
       SET
           row = emp_tab(i)
       WHERE
           empno = emp_pk(i);
END;
/