TYPE cause ORA-06502: PL/SQL: numeric or value error - plsql

Question

I have the following PL/SQL package:
CREATE OR REPLACE PACKAGE PKG_JCSJ
AS
TYPE record_organ_cant IS RECORD(CANT_CODE VARCHAR2(90),
ORGAN_ID VARCHAR2(90) ,
CANT_NAME VARCHAR2(90),
SUPP_TYPE VARCHAR2(20));
--TYPE array_organ_cant IS TABLE of PKG_JCSJ.record_organ_cant;
TYPE array_organ_cant IS TABLE of pub_organ_cant%ROWTYPE;
function fn_transe_organ_cant return PKG_JCSJ.array_organ_cant PIPELINED;
END PKG_JCSJ;
create or replace package body PKG_JCSJ is
function fn_transe_organ_cant return PKG_JCSJ.array_organ_cant PIPELINED
as
cursor cursor_organ_cant is select * from pub_organ_cant ;
record_o_c pub_organ_cant%rowtype;
record_o_c2 pub_organ_cant%rowtype;
cant_code VARCHAR2(90);
TYPE ref_cursor IS REF CURSOR;
array_column_value ref_cursor;
sp_cant_code VARCHAR2(90);
begin
open cursor_organ_cant;
loop
fetch cursor_organ_cant into record_o_c;
exit when cursor_organ_cant%notfound;
cant_code := record_o_c.cant_code;
if instr(cant_code, ',')>0 then
open array_column_value for select * from table(fn_split(cant_code));
loop
fetch array_column_value into sp_cant_code;
exit when array_column_value%notfound;
--DBMS_OUTPUT.put_line('---' || sp_cant_code);
record_o_c2.CANT_CODE := sp_cant_code;
record_o_c2.ORGAN_ID := record_o_c.ORGAN_ID;
record_o_c2.CANT_NAME := record_o_c.CANT_NAME;
record_o_c2.SUPP_TYPE := record_o_c.SUPP_TYPE;
--DBMS_OUTPUT.put_line('++++++' || record_o_c2.CANT_CODE);
PIPE ROW (record_o_c2);
end loop;
close array_column_value;
else
PIPE ROW (record_o_c);
end if;
end loop;
close cursor_organ_cant;
return;
end fn_transe_organ_cant;
begin
null;
end PKG_JCSJ;
Why is this statement failing?
TYPE array_organ_cant IS TABLE of PKG_JCSJ.record_organ_cant;
error info is ORA-06502: PL/SQL: numeric or value error. However, when I use the following statement, success!
TYPE array_organ_cant IS TABLE of pub_organ_cant%ROWTYPE;
record_organ_cant is same structure with TABLE pub_organ_cant, I have no idea why the former fails and the latter is successful, what's the difference?
then, package body as follow,

Answer 1

First of all, in your package body you don't have to use PKG_JCSJ. because its declared within the pacakge and should be accessible to any of its function like
create or replace package body PKG_JCSJ is
function fn_transe_organ_cant return array_organ_cant PIPELINED
....
Next, when you declare again you don't need PKG_JCSJ. like
CREATE OR REPLACE PACKAGE PKG_JCSJ
AS
TYPE record_organ_cant IS RECORD(CANT_CODE VARCHAR2(90),
ORGAN_ID VARCHAR2(90) ,
CANT_NAME VARCHAR2(90),
SUPP_TYPE VARCHAR2(20));
TYPE array_organ_cant IS TABLE of record_organ_cant;
function fn_transe_organ_cant return array_organ_cant PIPELINED;
END PKG_JCSJ;