Update MySQL 5.5 to 5.6 Ubuntu 12.04 using PPA

To update MySQL server from 5.5 to 5.6 login into server:

# apt-get -y remove mysql-server
# apt-get -y autoremove
# apt-get -y install software-properties-common
# add-apt-repository -y ppa:ondrej/mysql-5.6
# apt-get update
# apt-get -y install mysql-server