ช่วงคะแนนคำถาม/คำตอบที่กว้างที่สุด (คำตอบ > คำถาม) ไม่จำเป็นต้องใช้ตารางทั้งหมด
Widest Question/Answer Score Ranges (Answer > Question).It is not neccessary to use all the tables.
 PostTags:  PostId [ number]  TagId [ number] 
SELECT a.Id AS "post_link", q.Score AS QScore, q.OwnerUserId AS "user_link", a.Score AS AScore, a.OwnerUserId AS "user_link", a.Score - q.Score AS ScoreDiff FROM Posts AS q INNER JOIN Posts AS a ON q.Id = a.ParentId ORDER BY ScoreDiff DESC LIMIT 500