Granted, installing mysql on any Linux box these days is a no brainer. But installing mysql on ubuntu isn't an exception. It's a couple of steps. Nothing more:
Open a terminal window, and type:
That's the only gotcha! Typing "sudo apt-get install mysql" doesn't work. It needs to be" mysql-server".
sudo apt-get install mysql-server
Also, if you are running PHP - and you almost certainly are - you may also need to install the php module for mysql 5:
sudo apt-get install php5-mysql
There endeth the lesson!