คลาสไหนง่ายกว่า EECS 381 หรือ EECS 591 ?ไม่จำเป็นต้องใช้ทุกตาราง
Which class is easier , EECS 381 or EECS 591 ?It is not neccessary to use all the tables.
 jobs:  job_id [ int]  job_title [ varchar]  description [ varchar]  requirement [ varchar]  city [ varchar]  state [ varchar]  country [ varchar]  zip [ int] 
SELECT DISTINCT course.number FROM course INNER JOIN program_course ON program_course.course_id = course.course_id WHERE (course.number = 381 OR course.number = 591) AND program_course.workload = (SELECT MIN(PROGRAM_COURSEalias1.workload) FROM program_course AS PROGRAM_COURSEalias1 INNER JOIN course AS COURSEalias1 ON PROGRAM_COURSEalias1.course_id = COURSEalias1.course_id WHERE (COURSEalias1.number = 381 OR COURSEalias1.number = 591) AND COURSEalias1.department = 'EECS')