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Q&A for amateur radio enthusiasts

CREATE TABLE #users (UserId nvarchar (35), Name nvarchar (100));

INSERT INTO #users(UserId, Name) VALUES 
(209103, 'puf'),
(394010, 'katowulf'),
(110915, 'mikelehen'),
(879295, 'rdimarco'),
(1373162, 'deast'),
(5385206, 'sganem'),
(3875023, 'mpmcdonald'),
(5081766, 'bojeil'),
(807126, 'dougstevenson'),
(1410370, 'arthurthompson'),
(839465, 'mimming'),
(324977, 'samstern'),
(819314, 'ianbarber'),
(1172232, 'gregsoltis'),
(937583, 'raynor'),
(613115, 'dgiorgino'),
(1915327, 'dmabin'),
(4186942, 'bjiang'),
(4625829, 'aalawi'),
(4447017, 'andysoto'),
(978525, 'eobrain'),
(9849, 'rsattar'),
(2955366, 'jwenger'),
(1028647, 'jamesdaniels'),
(226391, 'bleigh'),
(7688078, 'rjh'),
(153407, 'danmcg'),
(3975963, 'mbonnell'),
(42960644, 'krausefx'),
(5190886, 'hkj'),
(2546685, 'oleksiyi'),
(556617, 'paulbeusterien'),
(6253640, 'mcg'),
(4816918, 'jhuleatt'),
(7164592, 'personjennifer'),
(6122677, 'kianam'),
(2207583, 'tburner'),
(1973552, 'ulukaya'),
(10880930, 'sumit'),
(11209105, 'Jeff Avis'),
(11229774, 'marcjordan'), 
(5827947, 'isachen'), 
(9789871, 'psanketi'),
(3945408, 'juanlara'),
(3043663, 'martinpatrick'),
(9754679, 'rich-gowman'),
(7644371, 'jim-morrison'),
(4092401, 'ying-li'),
(6122677, ' kianam'),
(11850212, 'ryanpbrewster')
;

SELECT Q.MONTH, Q.Count AS "##Tag?firebase## Questions", 
  Answers.Count AS "Answered", GooglerAnswers.Count AS "Googler Answers"
FROM (
  SELECT 
    DATEADD(MONTH, DATEDIFF(MONTH, 0, CreationDate), 0) AS [MONTH]
    , COUNT(*) AS Count
  FROM Posts
  INNER JOIN PostTags ON PostTags.PostId = Posts.Id
  INNER JOIN Tags ON PostTags.TagId = Tags.Id
  WHERE Tags.TagName = '##Tag##' AND PostTypeId = 1 AND CreationDate > '2015-01-01'
  GROUP BY DATEADD(MONTH, DATEDIFF(MONTH, 0, CreationDate), 0)
) AS Q
LEFT JOIN (
  SELECT 
    DATEADD(MONTH, DATEDIFF(MONTH, 0, A.CreationDate), 0) AS [MONTH]
    , COUNT(*) AS Count
  FROM Posts AS A
  INNER JOIN Posts AS Q ON A.ParentId = Q.Id
  INNER JOIN PostTags ON PostTags.PostId = Q.Id
  INNER JOIN Tags ON PostTags.TagId = Tags.Id
  WHERE Tags.TagName = '##Tag##'
    AND A.CreationDate > '2015-01-01'
    AND A.OwnerUserId IN (SELECT UserId FROM #users)
  GROUP BY DATEADD(MONTH, DATEDIFF(MONTH, 0, A.CreationDate), 0)
) AS GooglerAnswers
ON Q.MONTH = GooglerAnswers.MONTH
LEFT JOIN (
  SELECT 
    DATEADD(MONTH, DATEDIFF(MONTH, 0, Q.CreationDate), 0) AS [MONTH]
    , COUNT(*) AS Count
  FROM Posts AS Q
  INNER JOIN PostTags ON PostTags.PostId = Q.Id
  INNER JOIN Tags ON PostTags.TagId = Tags.Id
  WHERE Tags.TagName = '##Tag##'
    AND Q.CreationDate > '2015-01-01'
    AND EXISTS(SELECT Answers.Id FROM Posts AS Answers WHERE Answers.ParentId = Q.Id)
  GROUP BY DATEADD(MONTH, DATEDIFF(MONTH, 0, Q.CreationDate), 0)
) AS Answers
ON Q.MONTH = Answers.MONTH

fork query

edited may 31 20 anonymous

created jul 12 16 Frank van Puffelen