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Q&A about the site for builders and users of networked sensors and control devices in the contexts of smart homes, industry automation, or environmental sensors

-- Most popular StackOverflow tags in 2019

select 
       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 < '2019-12-31'
and Posts.CreationDate > '2019-01-01'
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) > 100)
as num ON rate.TagName = num.TagName
order by rate.rate desc
;

fork query

edited dec 4 19

created dec 4 19 anonymous