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Does not count self-answers. Shows users with at least @MinAnswers answers.

Q&A for SharePoint enthusiasts

-- Users with highest accept rate of their answers
-- Does not count self-answers.
-- Shows users with at least @MinAnswers answers.

DECLARE @MinAnswers int = ##MinAnswers##


SELECT TOP 100
  u.Id AS [User Link],
  count(*) AS NumAnswers,
  sum(case when q.AcceptedAnswerId = a.Id then 1 else 0 end) AS NumAccepted,
  sum( ca.CompetingAnswers ) AS CompetingAnswers,
  (sum(case when q.AcceptedAnswerId = a.Id then 1/(1.0 * ca.CompetingAnswers ) else 0 end)*100.0/COUNT(*)) AS WeightedAcceptedPercent
FROM Posts a
INNER JOIN Users u ON u.Id = a.OwnerUserId
INNER JOIN Posts q ON a.ParentId = q.Id
LEFT JOIN (
SELECT
    qc.AcceptedAnswerId,
    COUNT( ac.Id ) AS CompetingAnswers
FROM  Posts qc
INNER JOIN Posts ac
ON ac.ParentId = qc.Id AND ac.PostTypeId = 2
WHERE
    qc.PostTypeId = 1
AND qc.AcceptedAnswerId IS NOT NULL
AND ( qc.OwnerUserId <> ac.OwnerUserId OR qc.OwnerUserId IS NULL )
GROUP BY
    qc.AcceptedAnswerId
) ca ON ca.AcceptedAnswerId = a.Id
WHERE 
  (q.OwnerUserId <> u.Id OR q.OwnerUserId IS NULL)   --no self answers
GROUP BY u.Id
HAVING count(*) >= @MinAnswers
ORDER BY WeightedAcceptedPercent DESC, NumAnswers DESC

fork query

created jul 27 11 martin clayton