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 …
Understanding ER Diagrams and Relational Mapping in DBMS Question: Which of the following statements is true about the above ER diagram? The minimum number of relations required for the above ER diagram is 2. Attribute C will be present as …
