How to optimise the intermedia search query when using contains?

HI there,
I have a query to search my database in two tables on eight columns. So that I have eight indexes which are in a different tablespace. Now I have written a query like
select * from table1,table2 where
contains(col1,'wordlist1', 1)>0 and
contains(col2,'wordlist2', 2)>0 and
contains(col8,'wordlist2', 8)>0 ;
When I tried to execute this query, my databae is getting very very slow. As soon as I started the database its working fine, with in five munites of continuous checking, the database going to be slow. So
How can I optimise my query? Is there any better way to search the database using intermedia?
Any help or any sites list on intermedia searching utilities, other than the Oracle documentation is thankful.
waiting...
khaleel

Thank you Thomas,
I need some more from you...
If I have 8 tables for 8 columns, then how do i proceed?
Also could u tell me some query optimization techniques while working with intermedia text.
Thanks you once again,
waiting...
Khaleel Hi Khaleel,
I think this depends on your data model (relationship between the tables) and how you like to search later.
The optimization begins also with the create index statement (memory clause and storage clause).
If you like me to help I need more information about your hardware, os, datamodel and what kind of searches you will have later.
Cheers,
Thomas

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