RACKHAM 571 ง่ายกว่า RACKHAM 575 หรือไม่ ไม่จำเป็นต้องใช้ทุกโต๊ะ
Is RACKHAM 571 easier than RACKHAM 575 ?It is not neccessary to use all the tables.
 program_requirement:  program_id [ int]  category [ varchar]  min_credit [ int]  additional_req [ varchar] 
SELECT COUNT(*) > 0 FROM course AS COURSE_0, course AS COURSE_1, program_course AS PROGRAM_COURSE_0, program_course AS PROGRAM_COURSE_1 WHERE COURSE_0.department = 'RACKHAM' AND COURSE_0.number = 575 AND COURSE_1.department = 'RACKHAM' AND COURSE_1.number = 571 AND PROGRAM_COURSE_0.course_id = COURSE_0.course_id AND PROGRAM_COURSE_0.workload < PROGRAM_COURSE_1.workload AND PROGRAM_COURSE_1.course_id = COURSE_1.course_id