Airport (airportID, name, city, state, country) Carrier (carrierID, name, fleetS

Question

Airport (airportID, name, city, state, country) Carrier (carrierID, name, fleetSize, employees, revenue) Flight (carrierlD, flightNo, date, time, airportID, destination, distance) Airport airportiD name state country CDG Charles de Gaulle DXB Dubal International JFK John F Kennedy International New York LGA LaGuardia FRA UAE USA USA USA SFO San Francisco InternationalSan Francisco CA USA Paris New York Miami NY NY FL MIA Miami International Each airport name is unique in its country. The state attribute only applies to the United States airports. Carrier carrieriD name fleetsize employees revenue AF Air France DL Delta Air Lines EK Emirates Airline 239 US US Airways 84,602 15,414 80,00039,639 84,153 18,300 338 31467 13,050 225 855 Each carrier name is unique in the whole world.

Explanation / Answer

As per Chegg policy, I am answering first four questions:

1.) False. A tuple is a row in a relation.

2.) True. Each attribute in a relation has a distinct name.

3.) True. Degree of a relation is the number of columns.

4.) True. Degree of a relation is a property of the intension of the relation as it doesn't change w.r.t. time.

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