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Q&A for those who create, solve, and study puzzles

-- Most upvoted tags

SET ARITHABORT OFF
SET ANSI_WARNINGS OFF

SELECT
  TagName,
  Count,
  SUM(CASE WHEN VoteTypeID = 2 THEN 1 ELSE 0 END) As UpVotes,
  SUM(CASE WHEN VoteTypeID = 3 THEN 1 ELSE 0 END) As DownVotes,
  SUM(CASE WHEN VoteTypeID = 2 THEN 1 ELSE 0 END)/
  SUM(CASE WHEN VoteTypeID = 3 THEN 1 ELSE 0 END) AS Ratio
FROM Tags
  INNER JOIN PostTags ON PostTags.TagId = Tags.id
  INNER JOIN Posts ON Posts.ParentId = PostTags.PostId
  INNER JOIN Votes ON Votes.PostId = Posts.Id and VoteTypeId IN (2, 3)
GROUP BY
  TagName, Count
ORDER BY
  Ratio DESC

fork query

edited sep 9 16 anonymous

created may 26 10 polygenelubricants