As requested, I’ve extended the deadline for the SQL programming exercise (PEX) until 2300 on M20 (Wednesday, 4 March).

I recommend that you work in advance of that deadline in case you have questions. For example, it will be too late to ask me about a failing test output at 2200 that evening, and per the grading rubric, “no partial credit will be awarded for queries that fail the automated tests unless you can prove that a test case rejected valid input,” which is unlikely given how many people have already completed portions of the PEX.