Run time error INVALID DATATYPE from package

Question

Hi,
I compiled the package spec. and body. But, when I issue select mytest_pack.get_res_set from dual, oracle return invalid data type error.
My requirement to develop packaged function need to return multiple rows by using record type. This can be achieved by using pipe lined function or
sys refcursor. But, I would like the packaged function return must return record type.
Can you pl. correct this package code.
Thanks,
Murali
create or replace package mytest_pack as
Type lvr_type is Record
          id number,
          email varchar(50)
type lvr_recs is table of lvr_type;
     function get_res_set return lvr_recs;
end mytest_pack;
create or replace package body mytest_pack as
     function get_res_set return lvr_recs is     
          t_test lvr_recs := lvr_recs();
          r_test lvr_type;
          cursor c1 is select row_id, email from mytable;
     begin
          for rec in ( select row_id, email from mytable )
          loop
                    t_test.extend;
                    r_test.id           := rec.row_id;
                    r_test.email           := rec.email;
                    t_test(t_test.count) := r_Test;
               end loop;      
     return t_test;
     end get_res_set;     
end mytest_pack;
Table mytable script script is
CREATE TABLE MYTABLE
(Row_id NUMBER,
Email VARCHAR2(50),
Option_Name VARCHAR2(2000),
Option_Value_1 VARCHAR2(2000),
Option_Value_2 VARCHAR2(2000),
Last_Update_Date DATE
insert into mytable values (1, '[email protected]', 'XOPT 1', 'OPT 2', 'OPT 3', sysdate);
insert into mytable values (2, '[email protected]', 'YOPT 1', 'OPT 2', 'OPT 3', sysdate);

Answer 1

I dont see any problem with your code.
The problem is with "select mytest_pack.get_res_set from dual"
You cannot select complex datatypes from dual.
Why dont you try an anonymous pl/sql block and try assigning the record values into another record or table.
select xxx into xxx ...