MySQL is an open source, object-relational database built with speed and reliability in mind. Its large and active developer community has created many third-party applications, tools, and libraries that expand MySQL's functionality.
MySQL database clusters come configured with a default database (
defaultdb) and a default administrative user (
doadmin). These defaults are necessary for cluster replication and administration, so you can't delete them, but you can add additional users and databases.
To add or delete users or databases to a database cluster, click the name of the database to go to its Overview page, then select the Users & Databases tab.
Create a new database in the Databases section by entering a name in the Add new database field and clicking Save. You can also delete a database here by opening its More menu, clicking Delete, and then confirming the deletion.
Create new users in the Users section by entering a name in the Add new user field and clicking Save. New users will receive the permissions of the
doadmin user by default; these can be changed by following the instructions at How to Modify User Privileges in MySQL Databases.
You can also delete a user here by opening the user's More menu, clicking Delete, and then confirming the deletion. Similarly, to reset a user's password, open the user's More menu and select Reset password.