Hi, Try "alter system flush shared_pool", this will clear the pool of any entries Oracle no longer needs. Regards Pete -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Chen, Sarah Sent: 14 December 2004 22:33 To: 'oracle-l@xxxxxxxxxxxxx' Subject: ora-04031 Good afternoon I got ORA-04031: unable to allocate 27160 bytes of shared memory ("shared pool","unknown object","sga heap(1,0)","session param values") on the produciton database and no new session can connect to database. Any immediate action can take to solve the problem? Any help. Thanks Sarah Chen -- //www.freelists.org/webpage/oracle-l ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________ -- //www.freelists.org/webpage/oracle-l