คำตอบทั้งหมดที่มีคุณลักษณะบางอย่าง ไม่จำเป็นต้องใช้ตารางทั้งหมด
All Answers with some attributes.It is not neccessary to use all the tables.
 Comments:  Id [ number]  PostId [ number]  Score [ number]  Text [ text]  CreationDate [ time]  UserDisplayName [ text]  UserId [ number]  ContentLicense [ text] 
SELECT a.Score, q.Id, q.OwnerUserId, a.Score, q.CreationDate, q.Tags, a.Score, a.Score, a.Id, a.OwnerUserId, a.Score, a.CreationDate FROM Posts AS a JOIN Posts AS q ON a.ParentId = q.Id WHERE q.CreationDate >= '2013-01-01 00:00:00' AND a.CreationDate >= '2013-04-01 00:00:00' AND a.CreationDate < '2013-07-01 00:00:00'