Correlated Subqueries II, misinformation

  1. Why mention basing things on “time” in the intro to this exercise when none of the queries here involve time?
  2. Where is “flight_id” coming from? There is no column name or SQL query mentioning “flight_id”. It would make more sense to just say “flight id” with no underscore and not make it appear like it is a field name.

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