จำนวนคำตอบตามเดือนของผู้ใช้ ไม่จำเป็นต้องใช้ตารางทั้งหมด
Month wise number of answers by User.It is not neccessary to use all the tables.
 PostFeedback:  Id [ number]  PostId [ number]  IsAnonymous [ boolean]  VoteTypeId [ number]  CreationDate [ time] 
SELECT DATENAME(month, DATEADD(month, MONTH(CreationDate), -1)) AS "month", YEAR(CreationDate) AS "year", COUNT(Id) AS Answers FROM Posts WHERE OwnerUserId = '##UserId##' AND PostTypeId = 2 GROUP BY MONTH(CreationDate), YEAR(CreationDate) ORDER BY YEAR(CreationDate), MONTH(CreationDate)