.ไม่จำเป็นต้องใช้ทุกตาราง
.It is not neccessary to use all the tables.
 SuggestedEdits:  Id [ number]  PostId [ number]  CreationDate [ time]  ApprovalDate [ time]  RejectionDate [ time]  OwnerUserId [ number]  Comment [ text]  Text [ text]  Title [ text]  Tags [ text]  RevisionGUID [ other] 
SELECT p1.Id AS "AnsID", p1.ParentId AS "QuestionId", p1.CreationDate AS "AnsCreationdate", p2.CreationDate AS "QuestionCreationdate", CAST((JULIANDAY(CreationDate) - JULIANDAY(p2.CreationDate)) * 1440.0 AS INT) AS Time_Difference FROM Posts AS p1 JOIN Posts AS p2 ON p1.ParentId = p2.Id WHERE p1.PostTypeId = 2 AND p1.ParentId IN (SELECT pq.Id FROM Posts AS pq, Users AS u WHERE pq.OwnerUserId = u.Id AND pq.PostTypeId = 1)