Simple way to count clicks with jquery, mysql and ajax

Simple way to count clicks with jquery, mysql and ajax

My question to save time:
What is the simplest way to count clicks of a button, save that value to a
Wordpress MySQL db and retrieve that updated total number into a div with
Ajax, so the page doesn't need to up reloaded to see it?
I'm just learning how to dive into more UX glory with added mysql db
support and Ajax updates with jQuery as the driving force.
My knowledge of working with databases in general is... green to say the
least.
I have another question going, but I thought I'd open this up as a more
general question. I see lots of tutorials online, but not a lot of
elegant, minimal code like I know I've learnt here on SO already.
OP is here: Counting clicks with jQuery and displaying with Ajax