DB1 — Chapter #12 — Video #025 — RA (union, difference), case distinction, non-monotonic queries

Whole-channel inclusion: Database Systems Research Group at U Tübingen is an honest teaching channel (title sample + 3 transcripts read: All three transcripts show structured, sequential university lecture content teaching CS/database concepts with course numbering and instructor-led explanation.); this title passed a strict title check (sonnet) after a labelling pass.

A 82-minute video from Database Systems Research Group at U Tübingen: “DB1 — Chapter #12 — Video #025 — RA (union, difference), case distinction, non-monotonic queries”.

Video by Database Systems Research Group at U Tübingen, played through YouTube's embedded player.