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.
We'll cover the following...
We'll cover the following...
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 |
...