Question: Relational Calculus To express the existential quantifier , you can use EXIST To express the universal quantifier, you can use ALL To express the Not

Relational Calculus To express the existential quantifier , you can use

Relational Calculus To express the existential quantifier , you can use EXIST To express the universal quantifier, you can use ALL To express the Not Equal comparison operator #, you can use ! state NULL NULL Airport airportid name city CDG Charles de Gaulle Paris DXB Dubai International Dubai JFK John F Kennedy International New York LGA LaGuardia New York MIA Miami International Miami SFO San Francisco International San Francisco country FRA UAE USA USA USA NY NY FL CA USA Carrier carrieri AF DL EK US name Air France Delta Air Lines Emirates Airline US Airways fleetsize employees revenue 225 84,602 15,414 855 80,000 39,639 239 84,153 18,300 338 31,467 13,050 Flight carrierid flightNo date time airportID destination distance DL 426 10/16/2017 7:00 AM JFK SFO 2,586 DL 426 10/17/2017 7:00 AM JFK SFO 2,586 DL 479 10/16/2017 7:25 PM JFK SFO 2,586 EK 721 10/17/2017 11:25 AM CDG DXB 3,259 US 783 10/17/2017| 3:20 AM DXB JFK 6,843 DU 1472 10/17/2017| 7:30 AM LGA MIA 1.099 AF 3577 10/17/2017 5:45 PM JFK CDG 3,629 US 3577 10/17/2017 9:40 AM LGA SFO 2,576 AF 3634 10/16/2017 1:20 PM CDG MIA 4,580 Formulate the following queries in the relational calculus: List all flights leaving from United States airports. 3 points Your answer List the carrierld and the distance of all flights landing at NY state airports. 3 points Note: The attribute that characterizes landing flights is the destination attribute. Your answer List the carriers that do not leave from JFK. 3 points Your answer List the names of carriers that have flights landing at France airports. 3 points Your

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