There are two types of relational database manipulation language: procedural and assertional. A procedural language is one in which a query is expressed through a sequence of operations. This category ...

(a) Consider again Question 3 in Tutorial 1 (Challenge) to find the restaurants that sell all the pizzas that Maggie likes and don’t sell any pizza that Ralph likes. Write a relational algebra ...

Map the ERD given in Figure 1 (Page 3 in this HW), to the corresponding relational model. The ERD is a representation of a book database that captures the relationships between “books”, “publishers”, ...