ISRO exam 2016 – Question 54 with Solution

In this video we are going to discuss another question which was asked in the exam of ISRO

1. Let R(a, b, c) and S(d, e, f ) be two relations in which is the foreign key of S that refers to the primary key of R. Consider the following four operations R and S
2. Insert into R
3. Insert into S

• Delete from R

1. Delete from S

Which of the following can cause violation of the referential integrity constraint above?

• Both I and IV
• Both II and III
• All of these
• None of these.