Explore the fundamental concepts of relational databases in this 49-minute lecture on the Relational Data Model and Notion of Keys. Delve into key topics including relation schemes, examples of relations, and the crucial concept of keys for relations. Examine the structure of relational database schemes and instances, and understand the importance of domain and key constraints. Learn about foreign keys and their role in maintaining data integrity, with practical examples to reinforce understanding. Conclude by investigating the Referential Integrity Constraint (RIC) and its application in database design and management.
Overview
Syllabus
Intro
Relational Data Model
Relation Scheme
Another Relation Example
Keys for a Relation (1/2)
Keys for a Relation (2/2)
Relational Database Scheme and Instance
Domain and Key Constraints
Foreign Keys
Foreign Key - Examples (1/2)
Referential Integrity Constraint (RIC) - Example
Taught by
NPTEL-NOC IITM
