Error Message Indicates That Database Upgrade Has Failed (2040533)
When you use an Oracle database, upgrading from VirtualCenter 1.x to 2.x might produce an error message indicating that the database upgrade has failed.
You can ignore this error message. The database upgrade has succeeded. Wait about one minute for the VMware VirtualCenter Service to start up. When the service has started up, you can connect to VirtualCenter Server and access your data.