MYSQL加入查询没有删除

Question

我想通过id得到下面的查询删除所有的行，但查询运行正常，但它没有执行 - 没有错误或行影响。我用tripple检查了表格中的所有颜色名称，并且它们是正确的。

MYSQL：

DELETE c FROM campaigns c 
JOIN campaignsFroms f ON f.campaign_id = c.id 
JOIN campaignsRaw r ON r.campaignId = c.id 
JOIN campaignsSubjects s ON s.campaign_id = c.id 
WHERE c.id = 1582 

Answer 1

我不知道，如果你想这样的：

DELETE c, f, r, s 
FROM campaigns c LEFT JOIN 
    campaignsFroms f 
    ON f.campaign_id = c.id LEFT JOIN 
    campaignsRaw r 
    ON r.campaignId = c.id LEFT JOIN 
    campaignsSubjects s 
    ON s.campaign_id = c.id 
WHERE c.id = 1582; 

这将从所有连接到广告活动的表中删除记录。 LEFT JOIN是为了确保行不会被连接所考虑。