The posting at http://latest360.blogspot.com/2008/04/tips-for-better-performance-and-tuning.html is so questionable that interested readers should immediately research with keywords such as latest360.blogspot.com -site:latest360.blogspot.com on Google. The first link from the search points to http://www.dba-village.com/village/dvp_forum.OpenThread?ThreadIdA=34911 where Zoran Hudec of Australia told us the origin and how the author of latest360.blogspot.com took it out of context. (He could have added one more sentence like "The above are all urban legend, copied from ...".) Yong Huang -- //www.freelists.org/webpage/oracle-l