Question: (c) (3 marks) (i) Explain the sentence: Relational Database Systems are based on relations which are sets of tuples. Then represent the table below as

(c) (3 marks) (i) Explain the sentence: Relational Database Systems are based on relations which are sets of tuples. Then represent the table below as a set of tuples. Alice F 20 Joh M 19 (ii) Provide an expression in relational algebra corresponding to part b(i), that is, the expression that will return the details of all Computing academic staff who do not hold a PhD degree

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