Problem creating a user defined function...

Question

I have written a function in oracle as follows:
===========================
CREATE OR REPLACE
function getTeacherNameForHmroomAndSch(in_student_id STUDENTS.STU_ID%TYPE)
return varchar2 as
emp_full_name varchar2(64);
begin
     stu_school_id STUDENTS.STU_CURRENT_SCHOOL_ID%TYPE;
     stu_home_room STUDENTS.STU_HOMEROOM%TYPE;
     emp_id EMPLOYEES.EMPLOYEE_ID%TYPE;     
     select STU_CURRENT_SCHOOL_ID, STU_HOMEROOM INTO stu_school_id, stu_home_room from STUDENTS where STU_ID = in_student_id;
     select el1.TL_EMPLOYEE_ID into emp_id from EMPLOYEE_LOCATIONS el1
     where el1.TL_ID = (select max(el2.TL_ID) from (select el.TL_ID
     from EMPLOYEE_LOCATIONS el
     where el.TL_LOCATION_ID = stu_school_id
     and el.TL_HOMEROOM = stu_home_room) el2 group by el2.TL_ID);
     select case when FIRST_NAME is null then LAST_NAME else FIRST_NAME || ' ' || LAST_NAME end into emp_full_name from EMPLOYEES where EMPLOYEE_ID = emp_id;
     return emp_full_name;
     EXCEPTION
          WHEN NO_DATA_FOUND THEN
          RETURN null;
end getTeacherNameForHmroomAndSch;
===========================
When I am executing this create function i.e., compiling function in a SQL Editor, the SQL engine is throwing a warning message as follows:
===========================
Warnings: --->
W (1): Warning: execution completed with warning
<---
===========================
As a result, am not able to use this function in my SQL.
Please suggest a solution for my problem.
Thank You.
Shravan Kumar.M

Answer 1

Hello,
It is possible to create user fields using SDK on anykind of table but, sometimes in some Tables, adding them causes integrity problems and B1 cannot create the document of the Table, you can try that, but if there's an error when adding the bank statement you should erase it from the OBNK table using SDK again.
I've tried this on MRV1 (Inventory Revaluation Lines) and IPF2 (Landed Costs, Costs), when I tried to add the document (Inventory Revaluation or Landed Costs) appeared an error and B1 could not create the document, so i had to remove them with SDK again and the error was solved.
Best Regards hope it'll help you
Gabriela