Verma สอนหลักสูตรระดับสูงใดบ้าง ไม่จำเป็นต้องใช้ตารางทั้งหมด
Which upper level courses are taught by Verma ?It is not neccessary to use all the tables.
 program:  program_id [ int]  name [ varchar]  college [ varchar]  introduction [ 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 offering_instructor ON offering_instructor.offering_id = course_offering.offering_id INNER JOIN instructor ON offering_instructor.instructor_id = instructor.instructor_id INNER JOIN program_course ON program_course.course_id = course.course_id WHERE instructor.name LIKE '%Verma%' AND program_course.category LIKE 'ULCS'