Exercise

Categorical data validation

What expression asserts that the distinct Nobel Prize categories catalogued by the "prizes" collection are the same as those catalogued by the "laureates"? Remember to explore example documents in the console via e.g. db.prizes.find_one() and db.laureates.find_one().

Instructions

50 XP

Possible Answers

assert db.prizes.distinct("category") == db.laureates.distinct("prizes.category")
assert db.prizes.distinct("laureates.category") == db.laureates.distinct("prizes.category")
assert set(db.prizes.distinct("category")) == set(db.laureates.distinct("prizes.category"))

Take Hint (-15 XP)