How to improve performance of insert statement

Hi all,
How to improve performance of insert statement
I am inserting 1lac records into table it takes around 20 min..
Plz help.
Thanx In Advance.

I tried :
SQL> create table test as select * from dba_objects;
Table created.
SQL> delete from test;
3635 rows deleted.
SQL> commit;
Commit complete.
SQL> select count(*) from dba_extents where segment_name='TEST';
COUNT(*)
4
SQL> insert /*+ APPEND */ into test select * from dba_objects;
3635 rows created.
SQL> commit;
Commit complete.
SQL> select count(*) from dba_extents where segment_name='TEST';
COUNT(*)
6
Cheers, Bhupinder

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