We will use the MySQL DBMS interactively. Tutorials and online documentation for MySQL is readily available, e.g. via a web search (Google/whatever).
An account has been created for you under your Linux username, <username> below. Start your MySQL client by typing:
mysql -u <username> -D <username> -h mysql-server-1 -p
Enter your MySQL password, which is initially also your Linux username.
You can leave MySQL by typing
\qat the command prompt.