Here is quick way to create a MySQL database and user. This is useful for WordPress, Drupal, or other LAMP apps.
Login to MySQL with the MySQL root password:
$ mysql -u root -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 5 Server version: 5.5.29 MySQL Community Server (GPL) Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
Create the database named as desired:
mysql> create database mydatabase; Query OK, 1 row affected (0.00 sec)
Create a username and password and setup full access for that user to your database:
mysql> grant all on mydatabase.* to 'username'@'localhost' identified by 'thepassword'; Query OK, 0 rows affected (0.00 sec)
mysql> flush privileges; Query OK, 0 rows affected (0.00 sec)
mysql> exit Bye