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Question: The PRIMARY KEY Constraint

Explore how to define and implement the PRIMARY KEY constraint in an SQL table. This lesson helps you modify an Employees table to include a primary key that updates with each insertion, ensuring data integrity and uniqueness of records.

Question

Given the following Employees table ...

Employees

EmpID

EmpName

Salary

1

Susan Lee

50000.00

2

Alexa Smith

60000.00

3

Dana Amberson

45000.00

4

Sarah Ronald

47000.00

...