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 …
Relational Algebra Questions and Answers in DBMS Master the fundamentals of relational algebra with our detailed step-by-step solutions to common DBMS questions. This guide is perfect for students preparing for GATE, UGC NET, and technical interviews. Understand core concepts …
A comprehensive guide to understanding key database concepts for GATE aspirants Original GATE Question Year: 1990 Question Number: 2-iv Instructions: Match the following database concepts with their corresponding terms: Secondary index – (q) B-tree Non-procedural query language – …
