company_id and the maximum salary for each company from the Salaries table.CASE statement within the subquery to determine the tax rate based on the maximum salary.Salaries table on company_id.CASE statement to calculate the taxed salary for each employee by applying the tax rate to their salary.ROUND function to round the taxed salary to the nearest integer.company_id, employee_id, employee_name, and the calculated taxed salary) for the final output.erDiagram
Salaries {
int company_id
int employee_id
varchar employee_name
int salary
company_id employee_id PK
}