PostgreSQL is a handy database that can use reasonably large data sets and has good community support. Its syntax is different from mySQL if that’s what you’re used to, but it works the same basically.
setting up PostgreSQL
This is on Debian/Ubuntu variants:
apt-get install postgresql
Now you have to set it up. Connect to it like:
sudo -u postgres psql template1
Now login and change your root password like:
sudo -u postgres psql Password: psql (9.4.5) Type "help" for help. postgres=# ALTER USER postgres with encrypted password 'your_password';