Can I use a database from a VM (Virtual Machine) to my main computer session ?

It's easier said the done, but it's also not necessarily impossible. Have you looked in to something like Vagrant?

Basically, Vagrant will allow you to create a virtual machine that is accessible by a URL on your host machine. I believe it runs in something called "headless mode", which is essentially only terminal-access to the machine. There is no GUI to interface with. Files for your application, though, can be interfaced with through a shared folder from the host to the guest, normally utilizing a /public folder on the host, which is mapped to /var/www/public or similiar.

This isn't necessarily the same as directly interfacing with the database, though. I think perhaps there is a possible way to remap database requests to go in place or in addition to the current routes that Vagrant would set up. It should be noted that I haven't done this specific task before, but it doesn't seem that is would be impossible.

What sort of database are you using? Like I said, it's a pretty complicated process, but it is possible. If you let me know more about your setup I can try to help you out.

I hope this explanation was useful to you. Let me know if you have any questions.

Thank you John, I'm using an NoSQL database which is based on XML language.