Consider two relations r and s defined on the relational schemas R(A,B) and…
GATE · 2026 · DA · Data Science & AI
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?
- A.
Inserting records into relation r
- B.
Deleting records from relation s
- C.
Deleting records from relation r
- D.
Inserting records into relation s
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