如何将表从一台服务器更新到另一台服务器? [英] How to update a table from one server to another?
本文介绍了如何将表从一台服务器更新到另一台服务器?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我需要从一台服务器更新到另一台服务器,并且只能访问下面的代码. 我想知道错误在哪里.
I need to do an update from one server to another and could only get to the code that are below. I wanted to know where the mistake is.
如果将代码分开可以很好地工作.
If separating the codes works perfectly.
<?PHP
$db_host1 = "10.0.0.101";
$db_user1 = "dns";
$db_password1 = "123456";
$db_name1 = "dns";
$db_connect1 = mysqli_connect($db_host1, $db_user1, $db_password1, $db_name1);
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$db_host2 = "10.0.0.102";
$db_user2 = "dns";
$db_password2 = "123456";
$db_name2 = "dns";
$db_connect2 = mysqli_connect($db_host2, $db_user2, $db_password2, $db_name2);
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
mysqli_query($db_connect2,"UPDATE ipserver SET ipsserver = ($db_connect1,"SELECT ipsserver FROM ipserver WHERE idserver = '11'") WHERE idserver = '11'");
mysqli_close($db_connect1);
mysqli_close($db_connect2);
?>
感谢@Jon Dinham帮助我解决了问题
Thanks to @Jon Dinham for helping me solve my problem
我将已更正的脚本
<?PHP
$db_host1 = "10.0.0.101";
$db_user1 = "dns";
$db_password1 = "123456";
$db_name1 = "dns";
$db_connect1 = mysqli_connect($db_host1, $db_user1, $db_password1, $db_name1);
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$db_host2 = "10.0.0.102";
$db_user2 = "dns";
$db_password2 = "123456";
$db_name2 = "dns";
$db_connect2 = mysqli_connect($db_host2, $db_user2, $db_password2, $db_name2);
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$result = mysqli_query(
$db_connect1,
"SELECT ipsserver FROM ipserver WHERE idserver='11'"
);
$rows = mysqli_fetch_array($result,MYSQLI_NUM);
foreach ($rows as $index=>$row) {
$ipsserver = $row;
mysqli_query(
$db_connect2,
"UPDATE ipserver SET ipsserver='$ipsserver' WHERE idserver='11'"
);
}
mysqli_close($db_connect1);
mysqli_close($db_connect2);
?>
推荐答案
您应该设置MySQL复制(主/从)并仅在主数据库上执行查询.参见文档: http://dev.mysql.com/doc/refman/5.1/en/replication-howto.html
You should set up MySQL replication (master/slave) and execute the queries on the master DB only. See documentation: http://dev.mysql.com/doc/refman/5.1/en/replication-howto.html
仅查询1次,请替换以下行:
For just 1 time querying, replace the line:
mysqli_query($db_connect2,"UPDATE ipserver SET ipsserver = ($db_connect1,"SELECT ipsserver FROM ipserver WHERE idserver = '11'") WHERE idserver = '11'");
使用以下代码:
$result = mysqli_query(
$db_connect1,
"SELECT ipsserver FROM ipserver WHERE idserver='11'"
);
while ($row=$result->fetch_assoc()) {
$ipsserver = $row["ipsserver"];
mysqli_query(
$db_connect2,
"UPDATE ipserver SET ipsserver='$ipsserver' WHERE idserver='11'"
);
}
这篇关于如何将表从一台服务器更新到另一台服务器?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文