ค้นหาแท็กที่ไม่มีข้อความที่ตัดตอนมา ไม่จำเป็นต้องใช้ตารางทั้งหมด
Find tags with no excerpt.It is not neccessary to use all the tables.
 CloseAsOffTopicReasonTypes:  Id [ number]  IsUniversal [ boolean]  InputTitle [ text]  MarkdownInputGuidance [ text]  MarkdownPostOwnerGuidance [ text]  MarkdownPrivilegedUserGuidance [ text]  MarkdownConcensusDescription [ text]  CreationDate [ time]  CreationModeratorId [ number]  ApprovalDate [ time]  ApprovalModeratorId [ number]  DeactivationDate [ time]  DeactivationModeratorId [ number] 
SELECT t.Id, t.TagName, t.Count FROM Posts AS p, Tags AS t WHERE p.PostTypeId = 4 AND LENGTH(p.Body) = 0 AND p.Id = t.ExcerptPostId ORDER BY t.Count DESC