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How many questions per month does each tag in the top 10 tags get

プログラマーとプログラミングに熱心な人々のための質問と回答

select *, count(*) from
(
  select CAST(
      cast(DATEPART(YYYY, CreationDate) as varchar) + '-' + 
      cast(DATEPART(MM, CreationDate) as varchar) + '-01'
    as datetime) Month, 
    t.TagName
  from Posts p 
  join PostTags pt on pt.PostId = p.Id
  join Tags t on t.Id = pt.TagId
  where t.TagName in ('haskell', 'clojure', 'scala', 'smalltalk', 
  'lisp', 'scheme', 'erlang', 'ocaml', 'caml', 'f#')
) as X
group by TagName, Month
order by Month asc, TagName asc

fork query

edited apr 10 12 anonymous

created jan 16 12 sam.saffron