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-- Up vs Down votes by day of week of Question or Answer

SELECT
    CASE WHEN PostTypeId = 1 THEN 'Question' ELSE 'Answer' END As [Post Type],
    DATENAME(WEEKDAY, p.CreationDate) AS Day,
    Count(*) AS Amount,
    SUM(CASE WHEN VoteTypeId = 2 THEN 1 ELSE 0 END) AS UpVotes,
    SUM(CASE WHEN VoteTypeId = 3 THEN 1 ELSE 0 END) AS DownVotes,
    (CAST(SUM(CASE WHEN VoteTypeId = 2 THEN 1 ELSE 0 END) AS float) / CAST(SUM(CASE WHEN VoteTypeId = 3 THEN 1 ELSE 0 END) AS float)) AS UpVoteDownVoteRatio
FROM
    Votes v JOIN Posts p ON v.PostId=p.Id
GROUP BY
    PostTypeId, DATEPART(WEEKDAY, p.CreationDate), DATENAME(WEEKDAY, p.CreationDate)
ORDER BY
    PostTypeId, DATEPART(WEEKDAY, p.CreationDate)

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edited may 29 10

created may 29 10 Mark Hurd