php - PDO 连接语句

Question

我在下面有以下连接，我想知道是否有更好的方法来编写它，因为我在 MULTI DELETE 中得到 Unknown table 'id' 并且我似乎无法确定位置.

加入:

$query = $dbConnection->prepare('
    DELETE c.id, r.id, s.id,f.id,ip.id,ct.id
    FROM campaigns c
    JOIN campaignsFroms f ON f.id = c.id
    JOIN campaignsRaw r ON r.id = c.id
    JOIN campaignsSubjects s ON s.id = c.id
    JOIN campaignIPTracking ip ON ip.id = c.id
    JOIN campaignTracking ct ON ct.id = c.id
    WHERE c.id = :campaign_id');
$query->execute(array(':campaign_id' => $campaign_id));

Answer 1

您的DELETE 语句不正确。您应该删除这些字段。

DELETE 
    FROM campaigns c
    JOIN campaignsFroms f ON f.id = c.id
    JOIN campaignsRaw r ON r.id = c.id
    JOIN campaignsSubjects s ON s.id = c.id
    JOIN campaignIPTracking ip ON ip.id = c.id
    JOIN campaignTracking ct ON ct.id = c.id
    WHERE c.id = :campaign_id'