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Q&A about the site for scientists using computers to solve scientific problems

-- Most popular StackOverflow tags in May 2010

select top 10
       num.TagName as Tag,
       row_number() over (order by rate.Rate desc) as MayRank,
       row_number() over (order by num.Num desc) as TotalRank,
       rate.Rate as QuestionsInMay,
       num.Num as QuestionsTotal

from

(select count(PostId) as Rate, TagName
from
  Tags, PostTags, Posts
where Tags.Id = PostTags.TagId and Posts.Id = PostId
and Posts.CreationDate < '2001-12-30'
and Posts.CreationDate > '2000-01-01'
group by TagName) as rate

INNER JOIN

(select count(PostId) as Num, TagName
from
  Tags, PostTags, Posts
where Tags.Id = PostTags.TagId and Posts.Id = PostId
group by TagName
having count(PostId) > 800)
as num ON rate.TagName = num.TagName
order by rate.rate desc
;

fork query

edited may 27 20 anonymous

created jun 16 10 lukasz.lew