I’m also interested in MySQL developer and MySQL DBA exams. I have been working with MySQL for more than 5 years and I still don’t feel that I know all it’s angles really well. Recently I’ve started reading the MySQL 5.0 certification study guide. It will be interesting to compare the Zend and MySQL certification programs. While reading the book it was odd to find out that MySQL Query Browser was the third chapter of the book. And you must be able to know your way around the tool to take the developer exam. I have never used MySQL Query Browser and phpmyadmin has allways sufficed my needs as a web applications developer. Though I agree it is very useful tool. The study guide book comes with a CD that has training exercises in it. I was a little disappointed when I didn’t find a mock exam application to test what I’ve learned but instead found a PDF e-book with questions from every chapter. Still better than nothing. Even though the guide states that it is designed to make you think instead of memorize the material I think it is more effective to learn by taking tests.