SQL PRIMARY KEY Explained for Beginners: Unique Keys, Syntax & Best Practices 🔑
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YouTubeCodeLucky
SQL PRIMARY KEY Explained for Beginners: Unique Keys, Syntax & Best Practices 🔑
Learn all about SQL PRIMARY KEYs in this comprehensive beginner's guide! We'll break down what a primary key is, why it's important, and how to use it effectively in your database design. 🚀 This video covers: - What is a PRIMARY KEY and its purpose? - Key characteristics: Uniqueness, NOT NULL constraint, and data integrity. - Column-level ...
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