noaudit statement is not working !!!

Hi all,

I recently installed oracle 11gR2 database. lately I've been noticing large amount of records in aud$ table with action name delete on mdsys.sdo_geor_ddl_table$$ and other tables related to our application schema.

the deal is our application does alot of DELETE statements the whole time so it's a big headache to record all of them..

I tried noaudit delete on schema.tablename but no luck I also tried noaudit all on schema.tablename but no luck either it is still recording all the delete statements.

 

this is driving me crazy..please if any one can help I do appreciate it alot.