Oracle is probably the best database technology out there. I've never found anything as complete in terms of feature and functionality and sophistication.
Oracle VM offers enhancements in network and storage configuration with policy-based management for flexibility, praised for stability and efficiency with live migration. It is free with strong support but has complex implementation and limited monitoring. Users note difficulties with repository migration and outdated technology, solely using Xen hypervisor, lacking integration and modern support. Despite some performance limitations, Oracle VM provides straightforward provisioning and automation, albeit requiring extensive documentation and testing environments.