Indeed, the query is wrong and it won't take you near to the solution.
I suggest you to avoid that opinion and stay with Dwain's solution.
Luis C.
General Disclaimer:
Are you seriously taking the advice and code from someone from the internet without testing it? Do you at least understand it? Or can it easily kill your server?
How to post data/code on a forum to get the best help: Option 1 / Option 2