In this video, I explain foreign keys in SQL databases, why they are important, and how they help maintain data integrity.
What you will learn in this video:
• Definition of foreign keys and how they establish relationships between tables
• How foreign keys enforce referential integrity
• The difference between primary keys and unique keys
• How foreign keys prevent orphan records
By the end of this video, you will have a clear understanding of how to use foreign keys to structure relationships between tables and ensure accurate data management.
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