Are you interested in developing MySQL queries in Moodle so you can create your own customised reports ?
If so, you might be interested in “MoodleBites SQL Reporting in Moodle“.
This specialist course only runs twice a year, and the next start date is 1st August !
You can read the course outline here: http://www.moodlebites.com/mod/page/view.php?id=9112
Places are limited to keep the group small, so register soon.