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Emacs

Q&A for those using, extending or developing Emacs

SELECT Count(UserId) usercount, 
       yr, 
       wk 
FROM   (SELECT UserId, 
               Year(CreationDate)         yr, 
               Datepart(wk, creationDate) wk 
        FROM   Comments 
        UNION 
        SELECT UserId, 
               Year(CreationDate)         yr, 
               Datepart(wk, creationDate) wk 
        FROM   PostHistory
        UNION 
        SELECT OwnerUserId, 
               Year(CreationDate)         yr, 
               Datepart(wk, creationDate) wk 
        FROM   Posts) t 
GROUP  BY yr, 
          wk 
ORDER BY
        yr, wk

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