instruction: Total Posts for Ruby Per Month.
response: SELECT COUNT(*) AS PostCount, YEAR(P.CreationDate), MONTH(P.CreationDate) FROM Posts AS P INNER JOIN PostTags AS PT ON (P.Id = PT.PostId) INNER JOIN Tags AS T ON (PT.TagId = T.Id) WHERE T.TagName LIKE ('ruby%') GROUP BY YEAR(P.CreationDate), MONTH(P.CreationDate) ORDER BY 2 DESC, 3 DESC