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Q&A for professional robotic engineers, hobbyists, researchers and students

with counts_cte AS
(
SELECT eomonth(p.CreationDate) AS Cmonth,

  SUM(case when p.PostTypeId = 1 then 1 else 0 end) as Asked,
  SUM(case when p.AnswerCount > 0 then 1 else 0 end) as Answered
  
FROM Posts p
GROUP BY eomonth(p.CreationDate)
)

SELECT
  Cmonth,
  (CAST(Answered AS decimal))/(CAST(Asked AS decimal)) [Answers to questions ratio]
FROM counts_cte
ORDER BY Cmonth

fork query

edited aug 13 anonymous

created apr 10 20 Martin20528