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

プログラマーと熱狂的なプログラマーのためのサイトに関する質問と回答

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 tagname in 
  ('rust', 'haskell', 'clojure', 'groovy', 'ada', 'lua', 'erlang', 'julia', 'elixir', 'd'
  )
) as X
where Month < '2019-12-01'
group by TagName, [Month]
order by [Month] asc, TagName asc

fork query

edited dec 8 19 anonymous

created jan 16 12 sam.saffron