How to use Foreign Key in SQL
How to use Foreign Key in SQL
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Chapters:
00:05 Introduction to Foreign Key
00:11 What is a Foreign Key?
00:23 Example: Employee Table and Sales Table
00:39 Primary Key vs Foreign Key
01:01 Purpose of a Foreign Key
01:13 Referential Integrity and Data Consistency
01:38 Defining a Foreign Key in SQL Server
01:53 Creating Tables and Ingesting Data
03:02 Handling Errors in Data Ingestion
04:39 Example: Defining a Foreign Key Relationship
07:27 Verifying Foreign Key in Database Diagram
In this tutorial, learn how to apply a Foreign Key to a table in SQL to establish relationships between tables and maintain data integrity. We’ll guide you through the process of creating and applying Foreign Key constraints in SQL Server with practical examples for beginners.
What you will learn:
What is a Foreign Key and its role in SQL databases
Step-by-step guide to applying Foreign Key constraints in SQL
How Foreign Keys work with Primary Keys to create relationships between tables
Practical examples of applying Foreign Keys in SQL Server and MySQL
Best practices for managing Foreign Key relationships in your database
Understanding Foreign Key constraints and how they enhance data management
This video is ideal for beginners, developers, and those preparing for SQL interview questions who want to understand how to implement Foreign Keys in SQL.
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