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SELECT DATEADD(mm, (Year(Posts.CreationDate) - 1900) * 12 + Month(Posts.CreationDate) - 1, 0) AS Month, Tags.TagName, COUNT(*) AS Questions FROM Tags LEFT JOIN PostTags ON PostTags.TagId = Tags.Id LEFT JOIN Posts ON Posts.Id = PostTags.PostId LEFT JOIN PostTypes ON PostTypes.Id = Posts.PostTypeId WHERE Tags.TagName IN ( -- Languages --'javascript', 'php', 'java', 'c#', 'python', 'c++', 'objective-c', 'c', 'ruby', 'perl', 'c', 'objective-c', 'perl', 'ruby', 'vb.net', 'go', 'haskell', 'lua', 'vb6' -- SQL Databases --'mysql', 'oracle', 'postgresql', 'sql-server' ) AND PostTypes.Name = 'Question' AND -- Exclude the current month Posts.CreationDate < DATEADD(month, DATEDIFF(month, 0, GETDATE()), 0) GROUP BY Year(Posts.CreationDate), Month(Posts.CreationDate), Tags.TagName ORDER BY Year(Posts.CreationDate), Month(Posts.CreationDate), Tags.TagName