คำถามต่อวันระหว่างวันที่สองวัน ไม่จำเป็นต้องใช้ตารางทั้งหมด
Questions per day between two dates.It is not neccessary to use all the tables.
 Posts:  Id [ number]  PostTypeId [ number]  AcceptedAnswerId [ number]  ParentId [ number]  CreationDate [ time]  DeletionDate [ time]  Score [ number]  ViewCount [ number]  Body [ text]  OwnerUserId [ number]  OwnerDisplayName [ text]  LastEditorUserId [ number]  LastEditorDisplayName [ text]  LastEditDate [ time]  LastActivityDate [ time]  Title [ text]  Tags [ text]  AnswerCount [ number]  CommentCount [ number]  FavoriteCount [ number]  ClosedDate [ time]  CommunityOwnedDate [ time]  ContentLicense [ text] 
SELECT DAY(CreationDate), COUNT(Id) FROM Posts WHERE PostTypeId = 3 AND Posts.CreationDate >= '##Date1##' AND Posts.CreationDate <= '##Date2##' GROUP BY DAY(CreationDate) ORDER BY DAY(CreationDate)