Understanding Foreign Keys in SQL: Enforcing Data Relationships
What is a foreign key in SQL, and why is it important for database design? In this video, we explain the concept of foreign keys and how they help enforce relationships between tables in a relational database. Foreign keys ensure data integrity by linking records between tables and maintaining consistency.
By the end of this video, you’ll understand how to use foreign keys to create relationships between tables and maintain data integrity in your SQL database.
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