Oracle Database Technology

Now-a-days, we use virtual machines (VMs) a lot, to test operating systems, software, databases etc. as sandboxes - test, play, destroy ... repeat ! I had an interesting learning with Oracle virtualbox (issue & then solution discovery), which I'm sharing here ... it might help someone with similar situation : I had a VM in virtualbox, which I copied into a separate folder, while it was powered off. Now, after the original VM was gone, I wanted to add it as a separate VM with a different name. However, I was seeing this UUID conflict. (UUID already exists) What I did : 1) Created a new empty VM with the desired NAME. 2) Located the new folder, where copy of the VM was there. 3) Ran the commands to change the UUID for each disk-file (.vmdk or others) I had there : "C:\Program Files\Oracle\VirtualBox\vboxmanage.exe" internalcommands sethduuid disk1.vmdk (you have to be in the same directory as the disk files, to run this command. Easy, whereve