Great background info, thanks a lot. Trouble is, that the problem rises up from time to time, so I have to prepare myself, and react quickly to collect information. Thanks! Bobak, Mark schrieb: > Forgot to mention, see here for more insight: > http://sites.google.com/site/embtdbo/wait-event-documentation/oracle-library-cache#TOC-cursor:-pin-S-wait-on-X- > > Thanks to Connie Green and Kyle Hailey for that info. > > -Mark-- Usn's IT Blog for Linux, Oracle, Asterisk http://www.usn-it.de -- //www.freelists.org/webpage/oracle-l