How to load two dimentional data into table

Please advise for workaroud way to load two dimensional data into global temporary table,
The PL/SQL is the script work fine for loading one dimension data.



SQL> CREATE GLOBAL TEMPORARY TABLE t_transaction (c VARCHAR2(4000))
2 ON COMMIT DELETE ROWS;

SQL> CREATE OR REPLACE TYPE LISTOFOBJS AS OBJECT OF (DEPTNO NUMBER(10),DNAME varchar(20), LOC varchar2(10));

SQL> select * from dept;

DEPTNO DNAME LOC
---------- -------------- -------------
20 RESEARCH DALLAS
30 SALES CHICAGO
40 OPERATIONS BOSTON


SQL> declare
2 mytype LISTOFOBJS := LISTOFIDS(20,RESEARCH, DALLAS,30, SALES, CHICAGO,40 ,OPERATIONS, BOSTON);
3 begin
4 FOR i IN mytype.FIRST .. mytype.LAST
5 Loop
6 insert into t_transaction values (mytype(i));
7 end loop;

U need To create global temporary table with the object data type what u want to insert. Now presently it will work for scalar datatypes