What's a PRIMARY KEY CONSTRAINT in SQL?
Автор: code with renuka
Загружено: 2024-12-30
Просмотров: 27
Описание: Learn what a PRIMARY KEY CONSTRAINT is in SQL and how it's used to maintain data integrity in your database. A primary key is a column or set of columns in a table that uniquely identifies each row in the table. It's a crucial concept in database design and development. In this video, we'll explore the importance of primary key constraints, how to create them, and how they differ from unique constraints. Whether you're a beginner or an experienced SQL developer, this video is perfect for anyone looking to improve their database skills.
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