24 Primary Key vs Foreign Key in SQL Server | Interview Question

Complete playlist is here: https://www.youtube.com/playlist?list=PLKFKd7UiwVxMiV9Cy7gaF8A_ylx4FuFA9 In this video, we will clearly understand the difference between Primary Key and Foreign Key in SQL Server with simple explanations and practical examples. 🔍 What you will learn in this video What is a Primary Key in SQL Server What is a Foreign Key in SQL Server Key differences between Primary Key and Foreign Key How Primary Key ensures uniqueness How Foreign Key ensures referential integrity Can a table have multiple foreign keys? Real-world example using Parent & Child tables Can we insert NULL in foreign key column? Can we insert duplicate values in foreign key column? primary key vs foreign key difference between primary key and foreign key sql server primary key sql server foreign key primary key foreign key sql sql constraints tutorial sql server tutorial