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Q&A for professionals, academics, and students working within the systems development life cycle

SELECT Month = DATEADD(MONTH, DATEDIFF(MONTH, 0, p.CreationDate), 0),
             'Up-to-date content' = AVG(DATEDIFF(hour, p1.CreationDate, p.CreationDate))
FROM Posts p
INNER JOIN Posts p1 ON p.Id = p1.AcceptedAnswerId
GROUP BY DATEADD(MONTH, DATEDIFF(MONTH, 0, p.CreationDate), 0)
ORDER BY Month

fork query

edited jun 12 19

created mar 25 19 Iulia.Ionescu