FYI, I did put together a small test case with further explanation to my blog: http://blog.tanelpoder.com/2008/04/10/sqlnet-breakreset-to-client/ -- Regards, Tanel Poder http://blog.tanelpoder.com <http://blog.tanelpoder.com/> _____ From: Tanel Poder [mailto:tanel.poder.003@xxxxxxx] Sent: Thursday, April 10, 2008 00:05 To: 'pjhoraclel@xxxxxxxxx'; 'oracle-l' Subject: RE: Wait event SQL*Net break/reset to client caused by duplicate insert? Yes, a SQL*Net break/reset happens when an error/unhandled exception is raised during a call (which means that the call executed didn't complete normally, thus the call state must be reset).