SQL UNIQUE Constraints
4:03
YouTubeLearn Data with Joy
SQL UNIQUE Constraints
In this video, we break down the UNIQUE constraint in SQL, what it is, why it is used, and how to use it when creating your tables. You’ll see real examples in SQL Server (SSMS) and learn the common mistakes to avoid when working with UNIQUE This series covers all major SQL constraints: NOT NULL, UNIQUE, PRIMARY KEY, FOREIGN KEY, CHECK, and ...
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