How to use pl/sql code as ODI user defined function

Question

Hi All,
i have a pl/sql code and i want to create ODI user defined function using this code .
please find the pl/sql code below:
============================
declare
v_no_of_duplicate_rec number := 0;
begin
select count(*)
into v_no_of_duplicate_rec
from ( select 1
from temp_pre_selections
group by svb_number, selection_id
having count(*) > 1);
if v_no_of_duplicate_rec = 0 then
return 'N';
else
return 'Y';
end if;
end if;
==========================
please help me how to achieve the same .
Thanks
Vinod

Answer 1

2 ways:
a. implement logic in odi function directly: getCount, Oracle implementation:
select case count(1) when 0 then 'N' else 'Y' end
from hr.employees
when you use this function to refresh a variable, the refresh statement should only be getCount, you shoueld not write select getCount from dual, otherwise it will become
select select .... from ... from dual
b. if your logic is complex, I suggest to write function directly in your database, then call this function in your ODI function
eg:
CREATE OR REPLACE FUNCTION hr.test RETURN varchar2 IS
tmpVar NUMBER;
BEGIN
select count(1) into tmpVar from hr.employees;
if tmpVar=0 then
return 'N';
else
return 'Y';
end if;
END test;
then create a ODI function, Oracle implementation is
hr.test
in your variable refresh statement, you can write select getCount from dual
if you use the odi function in other locations expect for refreshing variable, the idea is similar