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Q&A about the site for students, teachers, and linguists wanting to discuss the finer points of the Italian language

Select  Datediff(year, p.CreationDate, Current_Timestamp) as Age,
       convert(DECIMAL(10,2), sum(case when p.AnswerCount =0  and p.AcceptedAnswerId is NULL then 1
                                       else 0
                                  end)
               ) / count(p.Id) as PercentAccepted
From Posts p
Where p.PostTypeId = 1
Group by Datediff(year, p.CreationDate, Current_Timestamp)
Order by Datediff(year, p.CreationDate, Current_Timestamp) desc

fork query

edited nov 12

created nov 12 anonymous