I DO think so, so does apparently Oracle: From http://www.oracle.com/database/db_options.html Oracle Database 10g Enterprise Edition Options Oracle offers a selection of options to enhance the power of Oracle Database and meet your specific needs. Advanced options are available at additional cost. Contact Oracle Direct at 1-800-ORACLE1 to help determine which options are right for you. Advanced Options at Additional Cost [snip] Oracle Partitioning Enhanced data management environment for OLTP, datamart, and data warehouse applications; improves manageability, availability, and performance for large underlying database tables and indexes. [snip] At 07:19 PM 4/8/2005, Leyi Zhang wrote: >really? not inclued in 10g EE? I don't think so. Regards Wolfgang Breitling Centrex Consulting Corporation www.centrexcc.com -- //www.freelists.org/webpage/oracle-l