Question

In a table employee, three fields exist such as empno, name, salary. Which field out of these three should be set as the primary key?

Answer 1

Answer:

empno should be the primary key

Explanation:

empno is the number and it can be auto increamented whenever the page is loaded every time. The empno column creates a unique value for every record of the table.

Answer 2

Answer:

there is no answer

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