Question

看下面的代码，它真的很有用。如果记录不存在，它会插入affiliate表。如果它已插入affiliate表中，则它将在phone表中添加新记录。但是，它需要更新第3个查询中phone_id表（新近期记录）中的affiliate字段 - 有没有办法减少这种情况？

$SQLInsert = "INSERT INTO affiliate (affiliate_id, affiliate_phone_id, stock) ";
$SQLInsert .= "VALUES ('1', '$affiliatePhoneID', '$stock') ";
$SQLInsert .= "ON DUPLICATE KEY UPDATE stock = '$stock'";
mysql_query($SQLInsert);
if (mysql_insert_id()) {
    $SQLInsert = "INSERT INTO phone (name) VALUE('$phoneName')";
    $q = mysql_query($SQLInsert);

    // If a record has been inserted into affiliate table and then phone table
    // then it need to update phone_id field in affiliate table. 
    $phone_id = mysql_insert_id();
    $SQLUpdate = "UPDATE affiliate set phone_id = $phone_id WHERE affiliate_id = 1 AND affiliate_phone_id = '$affiliatePhoneID'";
    mysql_query($SQLUpdate) or die(mysql_error());
}

Answer 1

也许你可以更改数据库sheme，以便电话表将forainkey保存到affilaite表。所以你不需要两次更新附表。

如果这不是您想要的，您可以尝试先更新电话表，然后是附表。

决定ON DUPLICATE KEY UPDATE查询？

1 个答案: