Hi, One of my database is 7.34 on hp-ux.Somehow one of our developer disable one of constraints.When I have tried to enable i noticed ora-02298 because of data inconsistent. When I run ALTER TABLE <NAMEOFTABLE> ENABLE NONVALIDATE CONSTRAINT <NAMEOF CONSTRAINT>; Didn't work.WOndering is there anyway we can enable constraints forecelly or ?? thanks -Seema _________________________________________________________________ Is your PC infected? Get a FREE online computer virus scan from McAfee® Security. http://clinic.mcafee.com/clinic/ibuy/campaign.asp?cid=3963 -- //www.freelists.org/webpage/oracle-l