หลักสูตร 9 หน่วยกิตใดเกี่ยวกับเชื้อชาติและหลังเชื้อชาติอเมริกา ไม่จำเป็นต้องใช้ตารางทั้งหมด
Which 9 -credit courses are about Race and Post-Racial America ?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 DISTINCT department, name, number FROM course WHERE (description LIKE '%Race and Post-Racial America%' OR name LIKE '%Race and Post-Racial America%') AND credits = 9