How can I Create function with an out Parameter

how all
how can I Create function with an out Parameter
I try to create it it sucess but how can I CALL it , it give me error
please I want A simple example
thanks

3rd post on same question by same user :
Re: how can I Create function with an out Parameter
how can I Create function with an out Parameter

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how can I Create function with an out Parameter

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Hello All,
Here is the requirement ..
cursor c is select first_name, last_name , ssn from employee ;
TYPE employee_type IS TABLE OF c%rowtype;
tbl_employee_type employee_type;
I want to pass the parameter to a function the ssn -: tbl_employee_type(1).ssn
how the formal parameter should be declared
===========================
function chk_notnull_blank ( ? ) return boolean is
BEGIN
if ( colname is NOT NULL and colname in ( -8E14, -7E14, -6E14, -5E14, -4E14, -3E14, -2E14, -1E14, -1E9 )) then
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end if;
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======================
pls advice
thanks/kumar

You cannot define a generic argument in a function,
but you can overload several funtions with the same name and different types of arguments in a package,
in this way (not tested):
create table employees as
select employee_id ssn, first_name, last_name from hr.employees;
create or replace
PACKAGE chk
IS
cursor c is select first_name, last_name , ssn from employees ;
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TYPE employee_ssn_type IS TABLE OF employees.ssn%TYPE;
TYPE employee_num_type IS TABLE OF number;
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create or replace
PACKAGE BODY chk
IS
FUNCTION chk_notnull_blank ( colname employees.ssn%TYPE) RETURN boolean IS
BEGIN
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BEGIN
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FUNCTION chk_notnull_blank ( colnames employee_ssn_type) RETURN boolean
IS
BEGIN
     FOR i IN colnames.FIRST .. colnames.LAST LOOP
        IF NOT chk_notnull_blank( colnames( i ) )
        THEN
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FUNCTION chk_notnull_blank ( colnames employee_num_type) RETURN boolean
IS
BEGIN
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Hi everybody
I need to call function module RSAR_ODS_API_GET (from BW). It recive an internal table with request ids and should return in E_T_DATA "unstructured" data from the psa and in E_T_RSFIELDTXT the description of the data structure, I guess
from sap help only thing I have reggarding how to use the function module is :
"You can call up the function module RSAR_ODS_API_GET with the list of request IDs given by the function module RSSM_API_REQUEST_GET. The function module RSAR_ODS_API_GET no longer recognizes InfoSources on the interface, rather it recognizes the request IDs instead. With the parameter I_T_SELECTIONS, you can restrict reading data records in the PSA table with reference to the fields of the transfer structure. In your program, the selections are filled and transferred to the parameter I_T_SELECTIONS.
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Function parameter "E_DATA" is unknown
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2) How do I use the parameter E_T_RSFIELDTXT to parse the data returned in E_DATA
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my test report is:
REPORT ZTEST_PSA_API.
TABLES: /BIC/B0000151000 .
TYPE-POOLS: RSSM.
TYPES: BEGIN OF STC_REQ_LINE,
sign(1),
         option(2),
         low TYPE rsa_request,
         high TYPE rsa_request,
         END OF STC_REQ_LINE,
IT_REQUEST TYPE STC_REQ_LINE OCCURS 0.
DATA: lit_request TYPE RSSM_T_API_REQUEST_GET WITH HEADER LINE,
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      lit_request1 TYPE IT_REQUEST WITH HEADER LINE.
DATA: lc_dtarget_name TYPE RSA_ODSNAME,
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DATA: lt_psa_data LIKE /BIC/B0000151000 OCCURS 0.
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EXPORTING
    I_SOURCE    = '2LIS_13_VDITM'
    I_TYP       = 'D'
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IMPORTING
    E_T_REQUEST = lit_request[]
    E_T_LOGSYS = lc_system
    EXCEPTIONS = 1.
READ TABLE lit_request.
lit_request1-sign = 'I'.
lit_request1-option = 'EQ'.
lit_request1-low = lit_request-request .
APPEND lit_request1 .
break-point .
CALL FUNCTION 'RSAR_ODS_API_GET'
EXPORTING
    I_T_REQUEST = lit_request1[]
IMPORTING
    E_ODSNAME = lc_dtarget_name
    E_T_RSFIELDTXT = lit_meta_data
TABLES
    E_DATA = lt_psa_data
EXCEPTIONS
    NO_DATA_FOUND = 1
    PARAMETER_FAILURE = 2
    REQUEST_NOT_AVAILABLE = 3
    NO_REQUEST_FOUND = 4
    NO_FIELDS_TO_ODS = 5
    NO_ODS_FOUND = 6
    PACKAGE_LOCKED_BY_LOADING = 7 .

Try to pass table parameter without "[]" :
CALL FUNCTION 'RSAR_ODS_API_GET'
EXPORTING
I_T_REQUEST = lit_request1
IMPORTING
E_ODSNAME = lc_dtarget_name
E_T_RSFIELDTXT = lit_meta_data
TABLES
E_DATA = lt_psa_data

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How can I Create function with an out Parameter

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