UGC NET PAPER 2 June 2019 Question 31 (Shift-I)

31. Which of the following has the same expressive power with regard to relational query language?
(a) Relational algebra and Domain relational calculus
(b) Relational algebra and Tuple relational calculus
(c) Relational algebra and Domain relational calculus restricted to safe expression
(d) Relational algebra and Tuple relational calculus restricted to safe expression

A (a) and (b) only

B (c) and (d) only

C (a) and (c) only

D (b) and (d) only

ANS. B

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UGC NET CS 2018 July - II Question 30	UGC NET CS 2018 July - II Question 32