<snip> Tinyurl.com complains the URL is not correct. Could you double check it? </snip> Somehow the link got confused. Here's a direct link to the presentation Harald posted: http://prutser.files.wordpress.com/2008/12/checkpointsukoug.pdf He has a blog posting with examples here: http://prutser.wordpress.com/2009/10/30/checkpoint-presentation-presented-at-the-rac-sig/ -- Rumpi Gravenstein -- //www.freelists.org/webpage/oracle-l