This tutorial will show how to find the number of employees under manager.
This tutorial will show how to list all employees even when an employee is not tagged to any department.
This tutorial will show how to find the managers who are having specified minimum number of employees working under them.
This tutorial shows how to select items randomly from each category in MySQL. So here we will select exactly one item randomly from each category. People who need sometimes to select photo from each photo category and display them on the page for animation purpose will be benefited.