The PRIMARY KEY keywords are used to generate a unique id for each new row in a table.

Name: The PRIMARY KEY keywords are used to generate a unique id for each new row in a table.
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The PRIMARY KEY constraint uniquely identifies each record in a table. Primary keys must contain unique values, and cannot contain NULL values. It does not automatically generate unique IDs; this is typically done using AUTO_INCREMENT (in MySQL) or IDENTITY (in SQL Server), in conjunction with the PRIMARY KEY.

The PRIMARY KEY Keywords Are Used to Generate a Unique