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Q&A for professional and enthusiast programmers

WITH QuestionsByMonth  AS (
SELECT DATEADD (month, DATEDIFF (month, 0, q.CreationDate), 0) AS [Month],
          q.Id AS id

    FROM        Posts           q
    INNER JOIN  PostTags        pt
    ON          q.Id            = pt.PostId
    INNER JOIN  Tags            t
    ON          t.Id            = pt.TagId

    WHERE       q.PostTypeId    = 1
    AND         t.TagName       = 'perl'

)
SELECT
q.[Month], COUNT(q.id) AS Qs

FROM        QuestionsByMonth   q
GROUP BY    q.[Month]
ORDER BY    q.[Month]

fork query

edited may 12 19

created may 12 18 JJ.Merelo