Take a look at this too: http://download-uk.oracle.com/oowsf2005/003wp.pdf It is really one of the best explanations I´ve ever seen. At least it sounds close to what Oracle programmers really did. ________________________________ From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of jame tong Sent: 24. október 2006 07:43 To: ORACLE-L Subject: Re: ** keep/pin objects in sga have a read at this document . http://www.miracleas.dk/tools/Miracle_2_cursor.pdf Fyrirvari/Disclaimer http://www.landsbanki.is/disclaimer