The subquery question in the midsem. I found that one a difficult one to answer because there was a video on the subquery content of that question but the lab was not released until 4 September, so we were not really drilled on it. That is we really had no practice on sub-queries. Was that taken into account when we sat the test, that we were to know that question? The lectures themselves did not delve into subqueries although I think a title was highlighted in "red" in there.

I delved into that particular part in the video, because it was going to be in the mid-term. That video was released before the mid-term.