作業說明裡提到"creation of temp table is not allowed."
"you have to write exactly one SQL statement."
什麼是"exactly one SQL statement"?
所以以下兩種code都不行嗎?
1 SELECT temp.rating
FROM ( SELECT ....) AS temp
WHERE temp.average = (SELECT ... FROM ....)_
(出自SQL講義第48頁)
2 SELECT
FROM
WHERE temp IN ( SELECT FROM WHERE)
謝謝