On 30/08/2013 4:48 AM, Outsider wrote: > Can I do it from self update or no ? How to do it ? and I will lose my > data ? > No, going from OE 12c CC Core 12.1.0.2->12.1.0.3 is not a 'self-update' step. You are strongly encouraged to read the upgrade doc at http://docs.oracle.com/cd/E24628_01/index.htm Since each installation is different in some way, you should plan your upgrade carefully based on the doc. The upgrade process allows you to retain the data - but you need to decide based on your analysis of the upgrade path. /Hans -- //www.freelists.org/webpage/oracle-l