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SELECT year(Posts.ClosedDate) as y, month(Posts.ClosedDate) as m, cast (year(Posts.ClosedDate) as varchar(10)) + '/' + cast(month(Posts.ClosedDate) as varchar(19)) as ym, count(CONCAT ('http://programmers.stackexchange.com/q/', Posts.Id)) as Questions
JOIN Posts ON Posts.Id = PostHistory.PostId
WHERE Posts.ClosedDate >= '2012-01-01'
--AND Posts.ClosedDate < '2012-12-01'
AND PostHistoryTypeId = 10
AND PostHistory.Comment != 1
group by year(Posts.ClosedDate), month(Posts.ClosedDate)
ORDER BY 1 desc, 2 desc