Question In a relational database, if A is a foreign key in relation R that references the primary key B in relation S, and X represents the set of non-null values in A, while Y is the set of all …
Integrity Constraints in DBMS Introduction Integrity constraints are essential rules applied to database tables to ensure data accuracy, consistency, and validity. They prevent invalid operations that could corrupt the database or violate logical rules, making them a cornerstone of …
