มีคลาส KINESLGY ที่ไม่ตรงกับวันศุกร์หรือไม่ ?ไม่จำเป็นต้องใช้ตารางทั้งหมด
Are there any KINESLGY classes that don 't meet Friday ?It is not neccessary to use all the tables.
 program_course:  program_id [ int]  course_id [ int]  workload [ int]  category [ varchar] 
SELECT DISTINCT course.department, course.name, course.number FROM course INNER JOIN course_offering ON course.course_id = course_offering.course_id INNER JOIN semester ON semester.semester_id = course_offering.semester WHERE course_offering.friday = 'N' AND course.department = 'KINESLGY' AND semester.semester = 'WN' AND semester.year = 2016