Could be. It just seems odd that the object DUAL would incur physical writes and row lock waits. Dave ___________________________________ David C. Herring, DBA | A c x i o m Delivery Center Organization 630-944-4762 office | 630-430-5988 wireless | 630-944-4989 fax > -----Original Message----- > From: Kerber, Andrew W. [mailto:Andrew.Kerber@xxxxxxx] > Sent: Thursday, April 12, 2007 10:07 AM > To: Herring Dave - dherri; oracle-l@xxxxxxxxxxxxx > Subject: RE: DML on dual? > > Is perhaps doing a select from dual to bump a sequence as part of a > transaction? I suppose that might get a lock... > ************************************************************************* The information contained in this communication is confidential, is intended only for the use of the recipient named above, and may be legally privileged. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please resend this communication to the sender and delete the original message or any copy of it from your computer system. Thank you. ************************************************************************* -- //www.freelists.org/webpage/oracle-l