From the given employee table, write a query to retrieve the total salary and count of employees who have the highest total salary, where the total salary is calculated as the product of months worked and the salary per month.Table: Employee
Question
From the given employee table, write a query to retrieve the total salary and count of employees who have the highest total salary, where the total salary is calculated as the product of months worked and the salary per month.Table: Employee
Solution
Sure, here is a step-by-step guide on how to write the SQL query:
- First, we need to calculate the total salary for each employee. We can do this by multiplying the 'months_worked' column with the 'salary_per_month' column.
SELECT employee_id, months_worked * salary_per_month AS total_salary
FROM Employee
- Next, we need to find the maximum total salary. We can do this by wrapping the above query in a subquery and using the MAX function.
SELECT MAX(total_salary)
FROM (
SELECT employee_id, months_worked * salary_per_month AS total_salary
FROM Employee
) AS SubQuery
- Now, we need to find the count of employees who have this maximum total salary. We can do this by using a WHERE clause in the outer query to filter for rows where the total salary is equal to the maximum total salary.
SELECT COUNT(employee_id), total_salary
FROM (
SELECT employee_id, months_worked * salary_per_month AS total_salary
FROM Employee
) AS SubQuery
WHERE total_salary = (
SELECT MAX(total_salary)
FROM (
SELECT employee_id, months_worked * salary_per_month AS total_salary
FROM Employee
) AS SubQuery
)
This query will return the count of employees and the maximum total salary.
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