Getting pls-00428 error.

Question

Hi all,
I'm trying to fix some invalid objects in our 11g database and i'm getting a pls-00428 error. Not sure where the issue is originating at (keep in mind, my IT team and I are not thoroughly experienced with 11g, so I apologize if this sounds a little too newbie-ish)
Here's the plsql:
create or replace
FUNCTION detail_cogs (
     sSKU varchar2
     --,dtFrom date := sysdate
return number
is
     nRetval number;
begin
select *
--SUM(cost * ieqty) into nRetval
from (
select
ie.qty ieqty
,ie.part
,ic.validdate
,ic.cost
,LAG(validdate) OVER (partition by ic.part order by validdate desc) prev_entry_time
from
oracle2_partexplosion_mv ie
,oracle2_itemcogs_mv ic
where
ie.sku = sSKU
and ic.part = ie.part
and ic.validdate <= sysdate
order by part, validdate desc
where
prev_entry_time is null;
     return nRetval;
exception
     when others then
          return null;
end;

Answer 1

Welcome to the forum.
Reading the documentation will save you:
PLS-00428: an INTO clause is expected in this SELECT statement
Cause: The INTO clause of a SELECT INTO statement was omitted. For example, the code might look like SELECT deptno, dname, loc FROM dept WHERE ... instead of SELECT deptno, dname, loc INTO dept_rec FROM dept WHERE ... In PL/SQL, only a subquery is written without an INTO clause.
http://download.oracle.com/docs/cd/E11882_01/server.112/e10880/pcmus.htm#sthref17855
http://www.oracle.com/pls/db112/search?word=select+into&partno=e10472
Doc home: http://www.oracle.com/pls/db112/homepage
And please change or remove this part from your code anyway, since it's nothing but a bug:
exception
when others then
return null;11g compiler warned you already about that, I may hope...