จำนวนผู้ใช้ต่อเดือน ไม่จำเป็นต้องใช้ทุกตาราง
Number of users per month.It is not neccessary to use all the tables.
 TagSynonyms:  Id [ number]  SourceTagName [ text]  TargetTagName [ text]  CreationDate [ time]  OwnerUserId [ number]  AutoRenameCount [ number]  LastAutoRename [ time]  Score [ number]  ApprovedByUserId [ number]  ApprovalDate [ time] 
SELECT DATEADD(month, DATEDIFF(month, 0, CreationDate), 0) AS Month, COUNT(DATEADD(month, DATEDIFF(month, 0, CreationDate), 0)) AS "Monthly Joins" FROM Users GROUP BY DATEADD(month, DATEDIFF(month, 0, CreationDate), 0) ORDER BY DATEADD(month, DATEDIFF(month, 0, CreationDate), 0)