595 กี่เครดิต ?ไม่จำเป็นต้องใช้ตารางทั้งหมด
How many credits is 595 ?It is not neccessary to use all the tables.
 offering_instructor:  offering_instructor_id [ int]  offering_id [ int]  instructor_id [ int] 
SELECT DISTINCT credits FROM course WHERE department = 'EECS' AND number = 595