How to make insert faster without droping indexs???????

Question

here is some challenge
I do not any option to drop index or stop nologgin etc. etc..
the only thing I can do it change my DML..
its' 10g
JUST FYI: with index, my insert would take less than 1 second.
AND my question is regarding this statement
--CREATE INDEX h_item_name ON h_item(name) INDEXTYPE IS CTXSYS.CONTEXT PARAMETERS('storage vzw_item_1_storage sync (every "SYSDATE+15/1440" )');
insert into h_item
select * from s_item;
set timing on
drop table s_item;
create table s_item
(name varchar2(2000 byte));
drop table h_item;
create table h_item
(name varchar2(2000 byte));
declare
begin
for i in 1..100000
loop
  insert into s_item values(i||'SOME JUNKS');
end loop;
commit;
end;
CREATE INDEX h_item_name ON h_item
(name)
INDEXTYPE IS CTXSYS.CONTEXT
PARAMETERS('storage vzw_item_1_storage sync (every "SYSDATE+15/1440" )'
insert into h_item
select * from s_item;
rollback;
Table dropped.
Elapsed: 00:00:01:01
Table created.
Elapsed: 00:00:01:28
Table dropped.
Elapsed: 00:00:00:29
Table created.
Elapsed: 00:00:00:26
PL/SQL procedure successfully completed.
Elapsed: 00:00:06:73
Index created.
Elapsed: 00:00:00:45
100000 rows created.
Elapsed: 00:00:13:01
Rollback complete.
Elapsed: 00:00:03:07

Answer 1

it's not new table... so can not use create table as.....
set array did not also help...
here is log still took 12 seconds
SQL> insert into h_item
2 select * from s_item;
100000 rows created.
Elapsed: 00:00:12.07
SQL>
SQL> rollback;
SQL> show array
arraysize 15
SQL> set arraysize 5000
SQL> set echo on
SQL> @tr1
SP2-0310: unable to open file "tr1.sql"
SQL> @t1
SQL>
SQL> set timing on
SQL>
SQL> drop table s_item;
Table dropped.
Elapsed: 00:00:00.11
SQL> create table s_item
  2  (name varchar2(2000 byte));
Table created.
Elapsed: 00:00:00.01
SQL>
SQL> drop table h_item;
Table dropped.
Elapsed: 00:00:00.59
SQL> create table h_item
  2  (name varchar2(2000 byte))
  3  NOLOGGING;
Table created.
Elapsed: 00:00:00.01
SQL>
SQL> declare
  2  begin
  3   for i in 1..100000
  4   loop
  5    insert into s_item values(i||'SOME JUNKS');
  6 
  7   end loop;
  8  commit;
  9  end;
10  /
PL/SQL procedure successfully completed.
Elapsed: 00:00:05.34
SQL>
SQL>
SQL>
SQL> CREATE INDEX h_item_name ON h_item
  2  (name)
  3  INDEXTYPE IS CTXSYS.CONTEXT
  4  PARAMETERS('storage vzw_item_1_storage sync (every "SYSDATE+15/1440" )'
  5  )
  6  ;
Index created.
Elapsed: 00:00:00.20
SQL>
SQL> insert into h_item
  2  select * from s_item;
100000 rows created.
Elapsed: 00:00:12.07
SQL>
SQL> rollback;
Rollback complete.
Elapsed: 00:00:01.85
SQL>
SQL>