ในประวัติศาสตร์ 497 ส่วนใดอยู่หลัง 17.15 น. ไม่จำเป็นต้องใช้ตารางทั้งหมด
In HISTORY 497 which section is after 1715 A.M. ?It is not neccessary to use all the tables.
 area:  course_id [ int]  area [ varchar] 
SELECT DISTINCT course_offering.end_time, course_offering.section_number, course_offering.start_time FROM course, course_offering, semester WHERE course_offering.start_time > '17:15' AND course.course_id = course_offering.course_id AND course.department = 'HISTORY' AND course.number = 497 AND semester.semester = 'WN' AND semester.semester_id = course_offering.semester AND semester.year = 2016