FOREIGN KEY Explained | Protecting Data Relationships in SQL
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YouTubeSmart Data AI
FOREIGN KEY Explained | Protecting Data Relationships in SQL
Foreign Keys are not optional. They enforce relationships between tables and prevent invalid data from being inserted into your database. In this video: - FOREIGN KEY constraint - Parent / child tables - Why data integrity matters Next video: DDL commands in practice: CREATE • ALTER • DROP #SQL #SQLServer #ForeignKey #DDL #DatabaseDesign
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