Question

Give the tuple calculus expressions for each using the below schema: Type The Answers SPERSON(EmpID, Name,...

Give the tuple calculus expressions for each using the below schema: Type The Answers

SPERSON(EmpID, Name, Dept)

TRIP(TripID, EmpID, ToCity, StartDate, EndDate)

EXPENSE(ExpID, TripID, AccountID, Amount)

a) List the names and employee ID of a salesperson.

b) List employee ID and employee names that took a trip(s) to Charleston city.

c) List the names of all employees who have spent more than $500 on their trip.

d) List employees' names and their IDs that have never taken a trip.

e) List the names of all salespersons that have at least been on one trip.

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