Referential Integrity in DBMS | Referential Integrity Constraint Explained with Examples
In this video, you'll learn Referential Integrity in DBMS in a simple and easy-to-understand manner. Referential Integrity is one of the most important integrity constraints in Database Management Systems (DBMS). It ensures that relationships between tables remain accurate and prevents invalid or orphan records.
This tutorial explains the concept with practical examples, making it ideal for beginners as well as students preparing for exams and interviews.
📚 Topics Covered
What is Referential Integrity?
What is an Integrity Constraint?
Foreign Key in DBMS
Parent Table and Child Table
Relationship Between Tables
Referential Integrity Rules
Insert, Update, and Delete Operations
Cascade Update and Cascade Delete
Examples of Referential Integrity
Advantages of Referential Integrity
Common Interview Questions
💡 What is Referential Integrity?
Referential Integrity is a database rule that ensures every Foreign Key value in a child table either:
Matches an existing Primary Key value in the parent table, or
Is NULL (if allowed).
This prevents invalid references and keeps the database consistent and reliable.
🎯 Suitable For
O Level (NIELIT)
BCA Students
MCA Students
B.Tech (CSE/IT)
Polytechnic Students
Computer Science Students
SQL Learners
DBMS Interview Preparation
University Exam Preparation
👍 If you found this video helpful:
Like the video
Share it with your friends
Subscribe to Infomax Computer Academy
Press the Bell Icon for more tutorials on DBMS, SQL, Python, PHP, Java, Power BI, and Computer Science.
#DBMS #ReferentialIntegrity #ForeignKey #IntegrityConstraints #DatabaseManagementSystem #SQL #DBMSTutorial #Database #PrimaryKey #ForeignKeyConstraint #OLevel #NIELIT #BCA #MCA #BTech #ComputerScience #InfomaxComputerAcademy