Error in the pl/sql block using associative arrays

Question

Hi
I tried the following block of code using associative arrays.
DECLARE
   TYPE NumTab IS TABLE OF NUMBER INDEX BY BINARY_INTEGER;
   CURSOR c1 IS SELECT empno FROM emp;
   empnos NumTab;
   rows   NATURAL := 10;
BEGIN
   OPEN c1;
   FOR i in empnos.first..empnos.last LOOP
      /* The following statement fetches 10 rows (or less). */
      FETCH c1 BULK COLLECT INTO empnos LIMIT rows;
      EXIT WHEN c1%NOTFOUND;
      DBMS_OUTPUT.PUT_LINE ( empnos.next(i));
   END LOOP;
   CLOSE c1;
END;and the error is
DECLARE
ERROR at line 1:
ORA-06502: PL/SQL: numeric or value error
ORA-06512: at line 8could you please let me know where i'm wrong
and please guide me where we use these associative arrays.
Thanks

Answer 1

Something like this. Do minor modification in your code.
DECLARE
   TYPE NumTab IS TABLE OF NUMBER INDEX BY BINARY_INTEGER;
   CURSOR c1 IS SELECT empno FROM emp;
   empnos NumTab;
   rows   NATURAL := 5;
BEGIN
   OPEN c1;
   LOOP  
    /* The following statement fetches 5 rows (or less). */
      FETCH c1 BULK COLLECT INTO empnos LIMIT rows;
      EXIT WHEN c1%NOTFOUND;
      DBMS_OUTPUT.PUT_LINE ( empnos.count);
   END LOOP;
   CLOSE c1;
END;
/