Question

. Using a subquery, write a SQL query that calculates how much

above or below average each hourly employee's payrate is. Average
here means average payrate of hourly employees.

Answer 1

To determine how each hourly employee's pay rate compares to the average, a SQL query with a subquery can be used. The subquery calculates the average pay rate of hourly employees, and the main query then computes the difference for each employee.

Step-by-step explanation:

To calculate how much above or below the average each hourly employee's pay rate is, you would need to write a SQL query using a subquery. The subquery should first calculate the average pay rate of all hourly employees. Once the average is determined, the main query will compare each employee's pay rate to this average and calculate the difference.

The SQL query might look something like this:

SELECT
EmployeeID,
PayRate,
PayRate - (SELECT AVG(PayRate) FROM Employees WHERE IsHourly = 1) AS DifferenceFromAvg
FROM
Employees
WHERE
IsHourly = 1;

This query selects the Employee ID, their pay rate, and calculates the difference from the average pay rate for all hourly employees. The subquery used in the SELECT statement calculates the average pay rate. It's important to note that the Employees table must have a column indicating whether the employee is paid hourly (IsHourly) and what their current pay rate is (PayRate).

By using this query, you can easily see at a glance how each employee's pay compares to the average pay rate of hourly workers.