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please can someone help me with this question The following three tables capture

ID: 3871019 • Letter: P

Question

please can someone help me with this question

The following three tables capture part of the information about a small airline operation. On each flight, individual seats are not assigned.

ScheduledFlightInfo:(Flightno, from, to, departureTime, arrivalTime)

ActualFlightInfo: (InfoId, FlightDate, FlightNo, actualDepartureTime, ActualArrivalTime, employeeNo, role, seats-remaining, airplane-serialNo)

Employee: (EmployeeNo, name, phone, jobTitle)

Identify functional dependency (or dependencies) for each numbered paragraph below. Use only fields in a table listed above. Consider all information given together. Identify which table each functional dependency is defined on. Do NOT add columns to the above two tables.

Explanation / Answer

Employee Table,FD:EmployeeName Employee Number,phone,JobTitle

1= Each flight number refers to one flight that goes from Source city to destination city.Flight numbers are unique.The table stores it arrival time and departure time .

2= The arrival and departure time of a flight on a given day are recorded in the ActualflightInfo table.

3=The database records the employeeNo and the role for each crewmember on each actual flight scheduled or flown on a particular date . Each employee serves only one role on a given flight scheduled or flown. An employee may serve different roles on different flights.

4=The number or remaining seat are recorded in database.