ทฤษฎี 590 จำเป็นสำหรับทฤษฎี 438 หรือไม่ ไม่จำเป็นต้องใช้ตารางทั้งหมด
Is THEORY 590 needed for THEORY 438 ?It is not neccessary to use all the tables.
 course_offering:  offering_id [ int]  course_id [ int]  semester [ int]  section_number [ int]  start_time [ time]  end_time [ time]  monday [ varchar]  tuesday [ varchar]  wednesday [ varchar]  thursday [ varchar]  friday [ varchar]  saturday [ varchar]  sunday [ varchar]  has_final_project [ varchar]  has_final_exam [ varchar]  textbook [ varchar]  class_address [ varchar]  allow_audit [ varchar] 
SELECT COUNT(*) > 0 FROM course AS COURSE_0, course AS COURSE_1, course_prerequisite WHERE COURSE_0.course_id = course_prerequisite.pre_course_id AND COURSE_0.department = 'THEORY' AND COURSE_0.number = 590 AND COURSE_1.course_id = course_prerequisite.course_id AND COURSE_1.department = 'THEORY' AND COURSE_1.number = 438