And i didnt get Your second point. We cant able to migrate the datas from 9i to 11g??? if Yes means whats the proble behind this? and how to do the migration from 9i to 11g?A full database export/import of an Oracle Apps database is supported if the database patchset level on the source node match the one you have on the target node. Moreover, you cannot migrate an 11i database to R12 database as there are many difference between the two application releases (new/modified modules/tables/view/packages (database objects), ..etc).