ต่อแท็ก ไม่จำเป็นต้องใช้ทุกตาราง
s per tag.It is not neccessary to use all the tables.
 PostHistory:  Id [ number]  PostHistoryTypeId [ number]  PostId [ number]  RevisionGUID [ other]  CreationDate [ time]  UserId [ number]  UserDisplayName [ text]  Comment [ text]  Text [ text]  ContentLicense [ text] 
SELECT SUM(ViewCount) AS Views FROM Posts AS Questions INNER JOIN PostTags ON Questions.Id = PostTags.PostId INNER JOIN Tags ON PostTags.TagId = Tags.Id WHERE Questions.PostTypeId = 1 AND Tags.TagName = '##tagname##'