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Q&A for professional and enthusiast programmers

DECLARE @UserId int = ##UserId##

SELECT (
  SELECT CAST(COUNT(Id) AS FLOAT)
  FROM Posts a
  WHERE a.OwnerUserId = @UserId
  AND a.PostTypeId = 2
  AND (Score = (
  SELECT MAX(Score) FROM Posts b WHERE b.ParentId = a.ParentId)))
  /
  (SELECT CAST(COUNT(Id) AS FLOAT)
  FROM Posts c
  WHERE c.OwnerUserId = @UserId
  AND c.PostTypeId = 2) * 100 AS TopAnswerRate;

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edited mar 6 13

created mar 6 13 DPenner1