ฉันสามารถเรียนหลักสูตร DHYGRACK 682 ได้หรือไม่ ?ไม่จำเป็นต้องใช้ทุกโต๊ะ
Can I take the course DHYGRACK 682 right now ?It is not neccessary to use all the tables.
 student_record:  student_id [ int]  course_id [ int]  semester [ int]  grade [ varchar]  how [ varchar]  transfer_source [ varchar]  earn_credit [ varchar]  repeat_term [ varchar]  test_id [ varchar] 
SELECT COUNT(*) > 0 FROM course, course_offering, offering_instructor, semester WHERE course.course_id = course_offering.course_id AND course.department = 'DHYGRACK' AND course.number = 682 AND offering_instructor.offering_id = course_offering.offering_id AND semester.semester = 'WN' AND semester.semester_id = course_offering.semester AND semester.year = 2016