1. Compare and contrast the tuple relational calculus with domain relational calculus. Specifically, discuss the distinction between tuple and domain variables.
2. Answer the following questions considering the Hotel schema I have attached below.
a) πhotelName (Hotel ⋈ Hotel.hotelNo = Room.hotelNo (σprice > 50(Room)) ).
b) Guest ⊐⊲ (σdateTo≥ ‘1-Jan-2007’ (Booking)).
Hotel Schema Attachment: