Axioms of Functional Dependencies in DBMS The Axioms of Functional Dependencies (also known as Armstrong’s Axioms) are a set of rules used to infer all possible functional dependencies from a given set of FDs. These axioms are sound (valid) and …
Question 1: Rent Payment Management in Hotel System Consider the entities ‘Apartment’ and ‘Tenant’ with a many-to-many relationship ‘Lease’ as shown below: If we wish to store information about the monthly rent paid by tenants occupying different apartments, this information …
Entity-Relationship Diagrams (ERD) Entity-Relationship Diagrams (ERDs) are fundamental tools in database design, offering a clear and graphical way to represent the logical structure of a database. In this detailed guide, we will cover all aspects of ERDs, focusing on …
Removing Redundant Attributes in Entity Sets One of the critical steps in database design using the Entity-Relationship (E-R) model is ensuring the elimination of redundant attributes in entity sets. This process helps to optimize the design, avoid data duplication, …
Relationship Sets in E-R Model The Entity-Relationship (E-R) Model is a cornerstone in database design, helping to define how entities relate to one another. For aspirants of GATE, UGC NET, NIELIT, ISRO, and other competitive exams, understanding relationship sets …
The Entity-Relationship Model (E-R Model): A Comprehensive Guide The Entity-Relationship (E-R) Model plays a critical role in database design, enabling the creation of an enterprise schema that represents the overall logical structure of a database. This model simplifies mapping real-world …
Comprehensive DBMS Summary | Notes for Competitive Exams Comprehensive DBMS Summary This comprehensive summary of Database Management Systems (DBMS) highlights key concepts, features, and architectural insights. Perfect for aspirants preparing for GATE, UGC NET, ISRO, NIELIT, and other competitive exams. …
Database Design: Concepts and Best Practices Introduction Database design plays a pivotal role in managing large volumes of information efficiently. Whether it’s for managing academic records at a university or customer data in an e-commerce business, a well-designed database …
Why Are Databases Important? Databases are indispensable in today’s professional world. They rank second only to programming as a critical skill for software engineers. Whether you are managing customer data, processing orders, or analyzing trends, databases are at the core …
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 …
