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Q&A for vintage-computer hobbyists interested in restoring, preserving, and using the classic computer and gaming systems of yesteryear

SELECT p.Id, p.CreationDate, n.NextId - p.Id - 1 AS 'Missing post ID',
  CONCAT('site://posts/', p.Id + 1, '/revisions') AS 'First missing post'
  FROM PostsWithDeleted AS p
  CROSS APPLY (
    SELECT MIN(Id) AS NextId FROM PostsWithDeleted WHERE Id > p.Id
  ) n
  WHERE n.NextId - p.Id != 1
  ORDER BY p.Id

fork query

edited jan 22 22

created jan 22 22 Glorfindel