The SAMPLE parameter of the 10g data pump (expdp) will allow you to export a specified percentage of data. I've never tested it though and I don't know how it handles referential integrity. For more info: http://download-west.oracle.com/docs/cd/B19306_01/server.102/b14215/dp_export.htm Regards, Brandon Allen Privileged/Confidential Information may be contained in this message or attachments hereto. Please advise immediately if you or your employer do not consent to Internet email for messages of this kind. Opinions, conclusions and other information in this message that do not relate to the official business of this company shall be understood as neither given nor endorsed by it. -- //www.freelists.org/webpage/oracle-l