Thanks, Carlos good information. Learn something new everyday. On Wed, 8 May 2013 07:55:57 -0400, Carlos Sierra wrote: Just created this blog entry with views for cbo stats versions: http://carlos-sierra.net/2013/05/08/browsing-schema-objects-cbo-statistics-versions/Â -- Wolfgang Breitling Centrex Consulting Corporation -- //www.freelists.org/webpage/oracle-l