s.ไม่จำเป็นที่จะต้องใช้ทุกตาราง
s.It is not neccessary to use all the tables.
 PostNotices:  Id [ number]  PostId [ number]  PostNoticeTypeId [ number]  CreationDate [ time]  DeletionDate [ time]  ExpiryDate [ time]  Body [ text]  OwnerUserId [ number]  DeletionUserId [ number] 
SELECT COUNT(DISTINCT p.Id) FROM Posts AS p WHERE p.PostTypeId = 1 AND NOT p.AcceptedAnswerId IS NULL