Question

我希望限制父（文章）给出的行数，你知道怎么做吗？我不想限制总行数（LIMIT x），只是来自＆＃39;文章＆＃39;表

SELECT * FROM articles
INNER JOIN categories
ON articles.category_id = categories.id
INNER JOIN articleInfo
ON articles.id = articleInfo.article_id
INNER JOIN articleWeights
ON articles.id = articleWeights.article_id
INNER JOIN articlePictures
ON articles.id = articlePictures.article_id
WHERE articleInfo.lang = :lang

我无助，无法在任何地方找到它。

谢谢！

Answer 1

由于您提及LIMIT，我假设您正在使用MySQL。您可以在LIMIT：

中使用subquery

SELECT * 
FROM (SELECT * FROM articles LIMIT 10) articles
    INNER JOIN categories
        ON articles.category_id = categories.id
    INNER JOIN articleInfo
        ON articles.id = articleInfo.article_id
    INNER JOIN articleWeights
        ON articles.id = articleWeights.article_id
    INNER JOIN articlePictures
        ON articles.id = articlePictures.article_id
WHERE articleInfo.lang = :lang

对JOIN的父母有限制

1 个答案: