The DDL and transaction myth might come from Oracle and deformed badly. Hopefully, the myth that DDL is not affected by transactions will be gone eventually.
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