Q26Section DA (Data Science and Artificial Intelligence (Q11–Q65))26 of 65
SQL operations that can never break a foreign key constraint
Consider two relations r and s defined on the relational schemas R(A,B) and S(E,C), respectively. A is the primary key of R and E is a foreign key of S referencing A in R. Which of the following operations will NEVER violate the foreign key constraint?
Multiple select: one or more options are correct. Select all of them, then submit — marks need the exact set.
Select every correct option, then submit.