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GATE 2026 · session-8
Database Management and WarehousingRelational Model and Integrity ConstraintsmediumMSQ1 mark
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?

Select every correct option.

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