Ya, I'm pretty proficient with MySQL and was surprised to get both of the SQL questions wrong (although close), while getting 13 / 18 overall. For the second SQL test, I expect that the second of the two iterations it managed took significantly less time than the first, since the data should have been cached. I guessed 100 for that one, thinking that it would probably manage more than 10 and 100 would give me more leeway - shouldn't have over-thought it.
