https://blog.mozilla.org/it/2012/11/28/learn-mysql-for-free-during-a-virtua…
"Starting January 1st, read a chapter per week and do the exercises. We
will go through chapter 12....The first few chapters cover database
basics and installing and connecting to MySQL, so if you cannot start
exactly on January 1st, that’s fine. And you can do exercises ahead of
time."
If you'd like to improve your skills at MySQL installation, database
design, querying, managing users and permissions, backups, options and
configuration, this is a cool opportunity. And if you can't afford the
book on your own, talk to me and I may be able to buy you the PDF.
--
Sumana Harihareswara
Engineering Community Manager
Wikimedia Foundation