I took a test now and scored 80% (but I dropped off early though).. While I'm not overly confident in myself regarding SQL, this at least gave me a little boost 🙂
IMHO
That is good testing score, now come to the dark side of the exams.
It always test about something that we normally not face everyday something like XML (auto, raw...etc), Rank, over partition, union etc..
So If you know all command structure inside out, how it works, and result outcome, you may be in good shape.
Just my 2 cents.
JJ