List the names and addresses of all guests in Kuala Lumpur

(a)        Based on the schema above, describe the relations that would be produced by the following relational algebra operations:   i.              ΠhotelNo (σprice > 50 (Room) )                                                       [2 Marks] ii.            σHotel.hotelNo = Room.hotelNo(Hotel × Room)                                     [2 Marks] iii.          ΠhotelName (Hotel ⊳⊲ Hotel.hotelNo = Room.hotelNo (σprice > 50 […]