ตอบแล้ว ไม่จำเป็นต้องใช้ทุกตารางครับ
s have you answered.It is not neccessary to use all the tables.
 ReviewRejectionReasons:  Id [ number]  Name [ text]  Description [ text]  PostTypeId [ number] 
SELECT answer.OwnerUserId AS "user_link", COUNT(*) AS number FROM Posts AS question INNER JOIN Posts AS answer ON question.PostTypeId = 1 AND answer.PostTypeId = 2 AND question.OwnerUserId = '##userid##' AND answer.ParentId = question.Id GROUP BY answer.OwnerUserId ORDER BY number DESC