Male-to-Female Edits Ratio on Wikipedia: Yearly Insights (2019-2024)

SQL

WITH base AS (
    SELECT  
        up_value AS gender,
        COUNT(r.rev_id) AS revision_count,
        YEAR(u.user_registration) AS year
    FROM 
        user AS u
    LEFT JOIN 
        user_properties AS up ON u.user_id = up.up_user  
    LEFT JOIN
        revision AS r ON u.user_id = r.rev_id
    WHERE 
        YEAR(u.user_registration) BETWEEN 2019 AND 2024
    GROUP BY 
        up_value, YEAR(u.user_registration)
)
SELECT
    year,
    SUM(CASE WHEN gender = 'male' THEN revision_count ELSE 0 END) AS edits_made_by_male_editors,
    SUM(CASE WHEN gender = 'female' THEN revision_count ELSE 0 END) AS edits_made_by_female_editors,
    ROUND(SUM(CASE WHEN gender = 'male' THEN revision_count ELSE 0 END) / 
    NULLIF(SUM(CASE WHEN gender = 'female' THEN revision_count ELSE 0 END), 0), 2
    )AS edits_made_by_male_female_ratio
FROM 
   base
GROUP BY
    year;

SQL

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