PLSQL - 2 FOR loops on nested tables - oracle

Question

PLSQL - 2 FOR loops on nested tables, one after the other, the second loop isn't performed while the nested table of the first loop is empty.
Follow is the code snippet:
type prod_seq_array is table of wiz_customer_hp_product.product_seq%type;
c_prod_add_arr prod_seq_array := prod_seq_array ();
c_prod_drop_arr prod_seq_array := prod_seq_array (1234,5678);
FOR i IN c_prod_add_arr.FIRST .. c_prod_add_arr.LAST LOOP
mydebug2.debug_out(fp,'shira2 ' ||wo_prod_rec_1.product_seq);
if v_prod_seq = c_prod_add_arr(i) then
v_status := 'C';
ins_hp_prod_svc;
v_drop_wo_date := v_add_date;
exit;
end if;
END LOOP;
FOR i IN c_prod_drop_arr.FIRST .. c_prod_drop_arr.LAST LOOP
if v_prod_seq = c_prod_drop_arr(i) then
v_status := 'C';
del_hp_prod_svc_hist ;
v_drop_wo_date := v_drop_date;
exit;
end if;
END LOOP;

Answer 1

I understand that FOR loop on empty nested table will throw exception so I added the following condition before each FOR loop
if c_prod_add_arr.count > 0
FOR i IN c_prod_add_arr.FIRST .. c_prod_add_arr.LAST LOOP
if v_prod_seq = c_prod_add_arr(i) then
v_status := 'C';
ins_hp_prod_svc;
v_drop_wo_date := v_add_date;
exit;
end if;
END LOOP;
end if;