Svar till relationsalgebraövningen (Databaser, fortsätt ningskurs)

The tables from the exercise:
Salesperson(SSN, Name, StartYear, DeptNo)
Trip(SSN, FromCity, ToCity, DepartureDate, ReturnDate, TripId)
Expense(TripId, Account, Amount)
Answers:


Thomas Padron-McCarthy (thomas.padron-mccarthy@tech.oru.se), 11 februari 2007