UGC-NET | UGC NET CS 2018 July - II | Question 69

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Let R1 (a, b, c) and R2 (x, y, z) be two relations in which a is the foreign key of R1 that refers to the primary key of R2 . Consider following four options. (a)Insert into R 1 (b)Insert into R 2 (c)Delete from R 1 (d)Delete from R 2 Which of the following is correct about the referential integrity constraint with respect to above?

Operations (a) and (b) will cause violation.
Operations (b) and (c) will cause violation.
Operations (c) and (d) will cause violation.
Operations (d) and (a) will cause violation.

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ER and Relational Models,UGC NET CS 2018 July - II,50 DBMS MCQs with Answers
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