Function within package error

Question

Hi friends,
I have a package called xxhw_ams_utils with a function in it get_salary
When i tried to execute that function within the package like the below manner means, im getting error like
ORA-00904: "XXHW_AMS_UTILS"."GET_SALARY": invalid identifier
select apps.xxhw_ams_utils.get_salary(1072) from dualwhere 1072 is the assignment id that im passing for testing purpose.
This is the actually the get_salary function which is inside the package xxhw_ams_utils coding
FUNCTION get_salary
(p_asg_id IN NUMBER)
    RETURN VARCHAR2 IS
l_gross VARCHAR2(20);
l_basic VARCHAR2(20);
BEGIN
select eev.screen_entry_value
into l_basic
       from   pay_element_entry_values_f eev,
              per_pay_bases              ppb,
              pay_element_entries_f       pe
       where  ppb.pay_basis_id  +0 = 61
       and    pe.assignment_id     = 1072
       and    eev.input_value_id   = ppb.input_value_id
       and    eev.element_entry_id = pe.element_entry_id
       and    sysdate between
                        eev.effective_start_date and eev.effective_end_date
       and    sysdate between
                        pe.effective_start_date and pe.effective_end_date;
EXCEPTION
WHEN OTHERS THEN RAISE;
END; Suppose if i executed like the below manner means, i getting the correct result
select eev.screen_entry_value
--into l_basic
       from   pay_element_entry_values_f eev,
              per_pay_bases              ppb,
              pay_element_entries_f       pe
       where  ppb.pay_basis_id  +0 = 61
       and    pe.assignment_id     = 1072------------------------------------>assignment id (that im passing)
       and    eev.input_value_id   = ppb.input_value_id
       and    eev.element_entry_id = pe.element_entry_id
       and    sysdate between
                        eev.effective_start_date and eev.effective_end_date
       and    sysdate between
                        pe.effective_start_date and pe.effective_end_date;Suppose if i execute like the below means it is returning error like invalid character.
select apps.xxhw_ams_utils.get_salary(1072) from dualWhy might be the problem friends.
Brgds,
Mini

Answer 1

Hi Giri,
Thanks yes i didnt mentioned that function get_salary in the package specification and now the package is compiled successfully,
But when i tried to execute i get the error like
ORA-06503: PL/SQL: Function returned without value
ORA-06512: at "APPS.XXHW_AMS_UTILS", line 177when i execute like
select apps.xxhw_ams_utils.get_salary(1072) from dualBrgds,
Mini