Moving from dev to prod -- code no longer works

Question

I'm moving my app from development (running on Oracle 10g) to production (running on Oracle 9i)
This page validation code (Function body returning boolean) returns an error
DECLARE
l_pg_total number;
BEGIN
l_pg_total := 0;
FOR ii IN 1 .. apex_application.g_f01.COUNT
LOOP
IF nvl(apex_application.g_f03 (ii),0) <> 0
THEN
l_pg_total := l_pg_total + 1;
END IF;
END LOOP;
IF l_pg_total <>0
THEN
RETURN TRUE;
ELSE
RETURN FALSE;
END IF;
end;
I'm having trouble figuring out why -- unless it's the different versions of the database?

Answer 1

I'm looping through a collection to validate the entry before moving onto the next page. I automatically present 7 rows in a grid that the user can fill in (7 fixed types of transaction, then begin date, end date, amount.) I just want to make sure they've filled in an amount on ANY line before moving on to the next page which gives an "Are you sure?" type of screen.
Any other suggestions how to do this?
I have a second validation after this that validates date ranges and isn't working either, but I figure if I can lick the simpler one the second one likely has the same problem, which appears to be how I'm referencing the fields in the collection?