Question

我想用一个查询使用内部联接来更新两个表，但它不更新或者不显示任何错误。这里是代码

$id_prod = 2; 
$id_cust = 2; 
$sql5 = "UPDATE `customer` 
      INNER JOIN `products` ON products.cust_id=customer.id 
     SET prod_name = 'CAKE' AND name = 'Hassan' 
     WHERE id='$id_cust' AND id='id_prod' "; 
$query5 = $conn->prepare($sql5); 
$query5->execute(array($id_cust, $id_prod)); 

Answer 1

也许要设定的误称，如果与表名前缀的列名之列，是更好？

像这样：

$id_prod = 2; 
$id_cust = 2; 
$sql5 = "UPDATE `customer` 
      INNER JOIN `products` ON products.cust_id=customer.id 
     SET __tableName__.prod_name = 'CAKE' AND __tableName__.name = 'Hassan' 
     WHERE __tableName__.id='$id_cust' AND __tableName__.id='id_prod' "; 
$query5 = $conn->prepare($sql5); 
$query5->execute(array($id_cust, $id_prod));