MySQL is a freely available open source Relational Database Management System (RDBMS) that uses Structured Query Language (SQL).  

phpMyAdmin is a free and open source tool written in PHP intended to handle the administration of MySQL with the use of a web browser.

Installing them into ubuntu is very easy.

Install MySQL

Steps:
1. Open terminal. Use ctrl+alt+t.
2. Type " sudo apt-get install mysql-server mysql-client " and hit enter.
3. Type username & password when ask to enter.
4. Type " exit " and hit enter.



Congrats! It's done. If you want to check it type " mysql " in terminal and hit enter. To exit from it type " exit " and hit enter.



Install phpMyAdmin

Steps:
1. Open terminal. Use ctrl+alt+t.
2. sudo apt-get install phpmyadmin
3. exit


You have installed phpMyAdmin successfully.
Now open http://localhost/phpmyadmin in your browser. You will see phpMyAdmin.


Leave your comment if you face any issue.