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Q&A for linguists, teachers and students of the Korean language

SELECT
    COUNT(*) AS TotalPosts,
    SUM(CASE WHEN CommentCount = 0 THEN 1 ELSE 0 END) AS PostsWithoutComments,
    CAST(SUM(CASE WHEN CommentCount = 0 THEN 1 ELSE 0 END) AS DECIMAL) * 100 / COUNT(*) AS PercentageWithoutComments
FROM Posts;

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edited nov 2

created nov 1 jon.doe46164