###HUMAN: For those employees who did not have any job in the past, return a bar chart about the distribution of job_id and the sum of employee_id , and group by attribute job_id, and show Y in desc order., ###ASSISTANT: SELECT JOB_ID, SUM(EMPLOYEE_ID) FROM employees WHERE NOT EMPLOYEE_ID IN (SELECT EMPLOYEE_ID FROM job_history) GROUP BY JOB_ID ORDER BY SUM(EMPLOYEE_ID) DESC