How to Apply Constraints on an Existing table? | SQL Tips | Tech and Talk

In this informative video, we explore the essential topic of applying constraints to an existing SQL table. Constraints play a crucial role in maintaining data accuracy and integrity within a database.
Join us as we delve into the world of SQL constraints, covering primary key, unique, check, and foreign key constraints. We provide practical, step-by-step examples to guide you through the process of adding these constraints to your database tables.
Learn how to ensure data uniqueness with primary key and unique constraints, enforce custom data rules using check constraints, and establish relationships between tables with foreign key constraints.
Whether you're new to SQL or looking to expand your knowledge, this video offers valuable insights and real-world scenarios to help you implement constraints effectively in your SQL projects.
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