We have ORACLE 10GR2 on Linux servers. Users are using ORACLE ODI tool to perform testing. Those testing will insert 20 to 30 millions records to tables then it will 'delete" or "rollback" data. Users complain "delete" or "rollback" 20 to 30 millions records take long time to finish. Does there has way to improve "delete" or "rollback" performance by setup DB parameters like SGA, PGA, ...? Thanks. -- //www.freelists.org/webpage/oracle-l