10

Please login or register to vote for this query.

(click on this box to dismiss)

Q&A about the site for enthusiasts and scholars of mythology and folklore

/*
This query returns the duplicate questions' count per month
Author: Issa Moradnejad
*/
SELECT date1, count(id) as cnt
FROM (

  SELECT 
    FORMAT (d.CreationDate, 'yy-MM') as [date1],
    (d.Id) as id
  FROM Posts d  -- d=duplicate
    LEFT JOIN PostHistory ph ON ph.PostId = d.Id
    LEFT JOIN PostLinks pl ON pl.PostId = d.Id
    LEFT JOIN Posts o ON o.Id = pl.RelatedPostId  -- o=original
  WHERE
    d.PostTypeId = 1  -- 1=Question
    AND pl.LinkTypeId = 3  -- 3=duplicate
    AND ph.PostHistoryTypeId = 10  -- 10=Post Closed
    
  ) as t1
group by date1
order by date1

fork query

edited oct 12 20

created jul 9 19 Moradnejad