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Q&A for students, teachers, polyglots, and anyone interested in the techniques of second-language acquisition

-- number of questions per day

SELECT CONVERT(date, CreationDate) AS date, AVG(CAST(Score AS FLOAT)) AS a_score
FROM Posts
WHERE PostTypeID = 1
GROUP BY CONVERT(date, CreationDate)
ORDER BY date DESC;

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edited may 11 15

created dec 21 13 Anton.