The following tables form part of a database held in a relational DBMS:- HOTEL ROOM (HOTELNO, HOTELNAME, CITY) (ROOMNO, HOTELNO, RTYPE, PRICE) Hotel Room HOTELNO HOTELNAME CITY ROOMNO HOTELNO RTYPE PRICE 501 fb81 fb81 Grosvenor London single 19 681 fb81 double 29 fb82 Watergate Paris 781 fb81 family 39 che1 Omni Shoreham London 1881 fb82 single 58 cha2 Phoenix Park London 1181 fb82 double 86 dce1 Latham Berlin 1001 choi single 29.99 Formulate the additional queries in relational algebra. Create the following relation that results from applying a DIFFERENCE relational operator to the tables Hotel and Room HOTELNO dc81