Hi there,

There’s some great guides knocking about for different database technologies that can help get you up & running. I’d so some research on what database suits your needs (or experiment with a few) and go from there:

MySQL: https://www.digitalocean.com/community/tutorials/a-basic-mysql-tutorial
MongoDB: https://www.digitalocean.com/community/tutorials/how-to-install-mongodb-on-ubuntu-14-04
Postgres: https://www.digitalocean.com/community/tutorials/how-to-install-and-use-postgresql-on-ubuntu-14-04
CouchDB: https://www.digitalocean.com/community/tutorials/how-to-install-couchdb-and-futon-on-ubuntu-14-04
Redis: https://www.digitalocean.com/community/tutorials/how-to-install-and-use-redis

Hopefully the above will get you going :)

Cheers