This blog shows how to install MySQL, and then setup a WordPress database.
MySQL
sudo apt-get install mysql-server
sudo systemctl status mysql
Database
sudo mysql -u root -p
CREATE DATABASE wpdb;
CREATE USER 'demouser'@'localhost' IDENTIFIED BY 'password';
GRANT ALL ON wpdb.* TO 'demouser'@'localhost' WITH GRANT OPTION;
FLUSH PRIVILEGES;
EXIT;
Example
mysql -u demouser -p password
