[eluser]OverZealous[/eluser] @happydude
I don't think that jpi was being sarcastic. I think he was letting you know that the docs explain the naming convention. You kinda need to expect a little bit of that if you ask beginner questions before reading the documentation, though. ;-)
As far as DB type - DMZ doesn't care which type of DB you use. I'm not a big MySQL user, but if I remember correctly you don't get proper transactions unless you use InnoDB. For any application bigger than a simple website, transactions really are the difference between a web toy and a safe app for multiple users.. You should double check which table type, though.