Error with function returning "multiple" values

Question

Hi
i am trying to write a function to return "multiple" values
however, it returned the following error during compilation
Compilation errors for FUNCTION sch1.myfn
Error: PLS-00382: expression is of wrong type
Line: 19
Text: RETURN V_res;
Error: PL/SQL: Statement ignored
Line: 19
Text: RETURN V_res;
ques :
1 - is there a need to always declare a table ? as it'll only return a single record with multiple columns
CREATE OR REPLACE TYPE result as table of result_t;
CREATE OR REPLACE TYPE result_t as object
(user varchar2(100), comments varchar2(4000));
CREATE OR REPLACE FUNCTION myfn (IN_ID IN VARCHAR2, IN_BEGIN IN DATE) RETURN result IS
type V_res_t is RECORD (user varchar2(100), comments varchar2(4000));
V_res V_res_t;
BEGIN
select a.user, a.comment
into V_res.user, V_res.comments
from view1     A,
(select distinct id,
begin_time,
max(time) over(order by time desc) max_time from view2 b
where id = IN_LOTID
and begin_time = IN_BEGIN) b
where a.id = b.id
and a.begin_time = b.begin_time
and a.time = max_time
and a.id = IN_ID
and a.begin_time = IN_BEGIN;
RETURN V_res; --> this is the line that the system keep complaining
END;
Note : pls ignore whether the return results is correct but i am expecting it to always return a single row
pls advise
tks & rgds

Answer 1

And if you really want to return a type as a table of, work with PIPELINED function :
SQL> CREATE OR REPLACE TYPE result_t as object
  2  (user# varchar2(100), comments varchar2(4000));
  3  /
Type created.
SQL> CREATE OR REPLACE TYPE result as table of result_t;
  2  /
Type created.
SQL>
SQL> CREATE OR REPLACE FUNCTION myfn (IN_ID IN VARCHAR2, IN_BEGIN IN DATE) RETURN result
  2  pipelined is
  3  user# varchar2(100);
  4  comments varchar2(4000);
  5  BEGIN
  6  pipe row (result_t(user#,comments));
  7  return;
  8  END;
  9  /
Function created.
SQL>PS: there is non sense to use pipelined function in my example, it is just an example to return a type as table.
Nicolas.