MySQL使用一个变量从多个表中删除

Question

我想从三个单独的表中删除三行。这是我的查询，但它似乎无法正常工作。

CREATE PROCEDURE `DB`.`deleteArticle` (IN x INT)
BEGIN

DELETE FROM articles
where article_id=x;

DELETE FROM AUTHORS
where submission_id = select submission_id from article_files where article_id=X;

DELETE FROM article_files
where article_id=X;

END

Answer 1

尝试这个

CREATE PROCEDURE `DB`.`deleteArticle` (IN x INT)
BEGIN

DELETE FROM articles
WHERE article_id=x;

DELETE FROM AUTHORS
WHERE submission_id IN (SELECT submission_id FROM article_files WHERE article_id=X);

DELETE FROM article_files
WHERE article_id=X;

END