• Next class: Monday at 2:00pm (the slide showed a stale time; the lecture is a re-recording) (20:30).
  • Agenda: brief announcements, then straight into the relational model and relational algebra (20:30).
  • A ~10-minute Q&A is reserved at the end of that class for questions about hiring in databases or databases in general — front-loaded on purpose so later material can build on it (20:30).
  • Note on the recording: the video opens with an unrelated voicemail/audio artifact because the mic failed during the original take (0:07, 0:46).