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1. Compare and contrast the tuple relational calculus with domain…

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:

 

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