instruction: Questions (total, answered, unanswered, users) by Year and Month for Tag.
response: SELECT DATEFROMPARTS(YEAR(p.CreationDate), MONTH(p.CreationDate), 1) AS ym, COUNT(DISTINCT p.OwnerUserId) AS users FROM Posts AS p JOIN PostTags AS pt ON p.Id = pt.PostId JOIN Tags AS t ON t.Id = pt.TagId WHERE t.TagName = '##Parameter##' GROUP BY DATEFROMPARTS(YEAR(p.CreationDate), MONTH(p.CreationDate), 1) ORDER BY DATEFROMPARTS(YEAR(p.CreationDate), MONTH(p.CreationDate), 1)