Hi Andrea,
I just started my own blog and had the same problem. So I added MySQL to this awesome Plugin myself.
You can download the extension for free from this site:
http://ansas-meyer.de/wordpress/plugin-crayon-syntax-highlighter-um-syntax-fuer-mysql-erweitern/
As my blog is in German I hope that you can translate it for yourself. If you have problems just contact me and I'll be glad to help you.
I'll guess I will translate that page if I find a fitting plugin to coordinate "same page in different languages".
Cheers,
Ansas
