Division

Compute the average revenue per employee for Fortune 500 companies by sector.

This exercise is part of the course

Exploratory Data Analysis in SQL

Exercise instructions

Compute revenue per employee by dividing revenues by employees; casting is used here to produce a numeric result.
Take the average of revenue per employee with avg(); alias this as avg_rev_employee.
Group by sector.
Order by the average revenue per employee.

Hands-on interactive exercise

Have a go at this exercise by completing this sample code.

-- Select average revenue per employee by sector
SELECT ___, 
       ___(___/___::numeric) AS avg_rev_employee
  FROM fortune500
 GROUP BY ___
 -- Use the column alias to order the results
 ORDER BY ___;

Edit and Run Code