s.ไม่จำเป็นที่จะต้องใช้ทุกตาราง
s.It is not neccessary to use all the tables.
 PostTags:  PostId [ number]  TagId [ number] 
SELECT P1.Id, P1.ParentId, P1.PostTypeId, P1.OwnerUserId, P1.Body, P2.Id, P2.ParentId, P2.PostTypeId, P2.OwnerUserId, P2.Body, Comments.Text, Comments.UserId FROM Posts AS P1 LEFT JOIN Posts AS P2 ON P1.Id = P2.ParentId LEFT JOIN Comments ON Comments.PostId = P1.Id WHERE P2.Body LIKE '%##Keyword##%' LIMIT 30