For the third year running, Alex and I will present the Oracle SQL Quiz on the ODTUG conference. This Quiz has a dozen or so questions on Oracle SQL and PL/SQL, that introduce some exotic, hidden or new as well as some fairly well known yet misunderstood features. Even die-hard Oracle developers tend to score less than 66% on the quiz, yet all of us learn from it!

One of the questions in this year’s quiz is based on the following case:

If you are curious as to what this is – please come and join us at the ODTUG 2007 Kaleidoscope Conference in Daytona Beach where we will present on Wednesday 20th June.