I think that Oracle Streams was created espacially for this. It will pick up your updates from the redo log and send them to be applied in the second database. Yechiel Adar Mehish Computer Services ----- Original Message ----- From: "Sami Seerangan" <dba.orcl@xxxxxxxxx> To: <oracle-l@xxxxxxxxxxxxx> Sent: Wednesday, February 16, 2005 3:47 AM Subject: How to handle the exception when remote db is down -- //www.freelists.org/webpage/oracle-l