Final answer:
The SQL command to list the first, middle, and last names of all employees with the highest salary involves using a subquery to determine the highest salary, and then selecting names of employees with that salary.
Step-by-step explanation:
To write the complete SQL command to list the first, middle, and last names of all employees with the highest salary, it is assumed that employee information is stored in a table, perhaps named employees, and there are columns for the first name (first_name), middle name (middle_name), and last name (last_name), as well as salary (salary). The SQL command would require a subquery to first find the highest salary and then to find all employees with that salary. Here is an example SQL command:
SELECT first_name, middle_name, last_name
FROM employees
WHERE salary = (SELECT MAX(salary) FROM employees);
This command selects the first name, middle name, and last name of employees whose salary is equal to the highest salary present in the employee's table.