What are the job titles, and range of salaries for jobs with maximum salary between 12000 and 18000?
SELECT job_title ,  max_salary - min_salary FROM jobs WHERE max_salary BETWEEN 12000 AND 18000
job titles refers to job_title; range of salaries refers to max_salary - min_salary; maximum salary between 12000 and 18000 refers to max_salary BETWEEN 12000 AND 18000;