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Q&A for the craft of professional writing, including fiction, non-fiction, technical, scholarly, and commercial writing

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'),
(1, 'Google Assistant'),
(12234169, 'manchan'),
(1491707, 'felker'),
(5733219, 'atulep'),
(2756266, 'taycaldwell'),
(12221640, 'jearleycha'),
(2, 'Smart Home'),
(656408, 'proppy'),
(10631310, 'tklopfenstein'),
(3, 'App actions'),
(1245915, 'diegozuluaga'),
(4, 'Other'),
(246461, 'smithdave'),
(59534213, 'martinpatrick'), 
(8200631, 'kevin-kokomani'), 
(8697185, 'scott-crossen'), 
(3618671, 'misha-brukman'), 
(281221, 'peter-friese'), 
(4092401, 'ying-li'), 
(6122677, 'kianam'), 
(7644371, 'jim-morrison'), 
(14466144, 'brettsneed'),
(13451151, 'kelsk'),
(5, '20211014'),
(8935548, 'mgoya'),
(12857703, 'rafael-lemos'),
(365738, 'sethvargo'),
(1476372, 'tony-j-huang'),
(5385206, 'steve-ganem'),
(16167525, 'vsfan'),
(12919863, 'maksym-malyhin'),
(1290844, 'vkryachko'),
(12015022, 'wesley-tarle'),
(13925433, 'alex-volkovitsky')
;

SELECT Q.MONTH, Q.Count AS "##Tag?firebase%## questions", 
(Q.Count - Closed.Count) AS "Unclosed questions", Answers.Count AS "Questions with answer", GooglerAnswers.Count AS "Questions with Googler answer"
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 LIKE '##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 LIKE '##Tag##'
    AND A.CreationDate > '2015-01-01'
    AND EXISTS(SELECT * FROM #users WHERE UserId = A.OwnerUserId)
  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 LIKE '##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
LEFT JOIN (
  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 LIKE '##Tag##' AND PostTypeId = 1 AND CreationDate > '2015-01-01' AND ClosedDate > '2015-01-01'
  GROUP BY DATEADD(MONTH, DATEDIFF(MONTH, 0, CreationDate), 0)
) AS Closed
ON Q.MONTH = Closed.MONTH
ORDER BY Q.Month
;

fork query

edited nov 10 22

created jul 12 16 Frank van Puffelen