AERO 202 พบกันกี่ครั้งต่อสัปดาห์ ?ไม่จำเป็นต้องใช้ตารางทั้งหมด
How many times a week does AERO 202 meet ?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 (SELECT SUM(CASE WHEN DERIVED_TABLEalias0.FRIDAY = 'Y' THEN 1 ELSE 0 END) + SUM(CASE WHEN DERIVED_TABLEalias0.MONDAY = 'Y' THEN 1 ELSE 0 END) + SUM(CASE WHEN DERIVED_TABLEalias0.SATURDAY = 'Y' THEN 1 ELSE 0 END) + SUM(CASE WHEN DERIVED_TABLEalias0.SUNDAY = 'Y' THEN 1 ELSE 0 END) + SUM(CASE WHEN DERIVED_TABLEalias0.THURSDAY = 'Y' THEN 1 ELSE 0 END) + SUM(CASE WHEN DERIVED_TABLEalias0.TUESDAY = 'Y' THEN 1 ELSE 0 END) + DERIVED_FIELDalias6 FROM (SELECT SUM(CASE WHEN DERIVED_TABLEalias0.FRIDAY = 'Y' THEN 1 ELSE 0 END), SUM(CASE WHEN DERIVED_TABLEalias0.MONDAY = 'Y' THEN 1 ELSE 0 END), SUM(CASE WHEN DERIVED_TABLEalias0.SATURDAY = 'Y' THEN 1 ELSE 0 END), SUM(CASE WHEN DERIVED_TABLEalias0.SUNDAY = 'Y' THEN 1 ELSE 0 END), SUM(CASE WHEN DERIVED_TABLEalias0.THURSDAY = 'Y' THEN 1 ELSE 0 END), SUM(CASE WHEN DERIVED_TABLEalias0.TUESDAY = 'Y' THEN 1 ELSE 0 END), SUM(CASE WHEN DERIVED_TABLEalias0.WEDNESDAY = 'Y' THEN 1 ELSE 0 END), COURSE_OFFERING, SEMESTER WHERE COURSEalias0.COURSE_ID = COURSE_OFFERING.COURSE_ID AND COURSEalias0.DEPARTMENT = 'AERO' AND COURSEalias0.NUMBER = 202 AND SEMESTER.SEMESTER = 'WN' AND SEMESTER.SEMESTER_ID = COURSE_OFFERING.SEMESTER AND SEMESTER.YEAR = 2016 LIMIT 1) AS DERIVED_TABLEalias0) AS DERIVED_TABLEalias1