sql - MySQL - Select语句，按每篇文章的评论数排序

Question

您好，我想做类似以下的事情:

SELECT * FROM tbl_article
JOIN tbl_comments ON tbl_article.id = tbl_comments.article_id
ORDER BY COUNT(tbl_comments.article_id)

有人可以建议我如何让它发挥作用吗？

Answer 1

这应该可以完成工作:

SELECT 
    tbl_article.*, COUNT(tbl_comments.article_id) as total_comments
FROM 
    tbl_article
LEFT JOIN 
    tbl_comments ON tbl_comments.article_id = tbl_article.id
GROUP BY 
    tbl_article.id
ORDER BY 
    COUNT(tbl_comments.article_id)