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php批量轉換mysql表引擎
添加時間：2015-1-3 21:00:25
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有些時候可能需要批量轉換mysql表的引擎,如下為php操作實現
<?php
/**
* 批量轉換mysql表引擎
*/
error_reporting(e_all);
// 數據庫連接配置
$host = 'localhost';
$username = 'root';
$passwd = '';
$database = 'test';
// 要轉換的庫名配置,多庫轉換增加配置元素即可
$configs = array($database);
// 轉換配置
$convert_rule = array(
'from' => 'innodb',
'to' => 'myisam'
);
mysql_engine_convert();
/**
* 轉換函數
*/
function mysql_engine_convert()
{
global $host,$username,$passwd,$configs,$convert_rule;
if ( ($conn = mysql_connect($host, $username, $passwd)) !== false)
{
foreach ($configs as $db_name)
{
mysql_select_db($db_name) or exit('not found db: '. $db_name);
$tables = mysql_query("show full tables");
while ($table = mysql_fetch_row($tables))
{
if ($table[1] === 'view') continue;
$sql = "show table status from {$db_name} where name='{$table[0]}' ";
if ($result = mysql_query($sql))
{
$table_status = mysql_fetch_row($result);
if (strtolower($table_status[1]) == strtolower($convert_rule['from']))
mysql_query("alter table {$table[0]} engine = {$convert_rule['to']}");
}
}
echo $db_name,':all tables engine is ',$convert_rule['to'],"\n";
}
} else {
echo "db error\n";
}
<?php
/**
* 批量轉換mysql表引擎
*/
error_reporting(e_all);
// 數據庫連接配置
$host = 'localhost';
$username = 'root';
$passwd = '';
$database = 'test';
// 要轉換的庫名配置,多庫轉換增加配置元素即可
$configs = array($database);
// 轉換配置
$convert_rule = array(
'from' => 'innodb',
'to' => 'myisam'
);
mysql_engine_convert();
/**
* 轉換函數
*/
function mysql_engine_convert()
{
global $host,$username,$passwd,$configs,$convert_rule;
if ( ($conn = mysql_connect($host, $username, $passwd)) !== false)
{
foreach ($configs as $db_name)
{
mysql_select_db($db_name) or exit('not found db: '. $db_name);
$tables = mysql_query("show full tables");
while ($table = mysql_fetch_row($tables))
{
if ($table[1] === 'view') continue;
$sql = "show table status from {$db_name} where name='{$table[0]}' ";
if ($result = mysql_query($sql))
{
$table_status = mysql_fetch_row($result);
if (strtolower($table_status[1]) == strtolower($convert_rule['from']))
mysql_query("alter table {$table[0]} engine = {$convert_rule['to']}");
}
}
echo $db_name,':all tables engine is ',$convert_rule['to'],"\n";
}
} else {
echo "db error\n";
}
} 詳情可參考http://www.cxybl.com/html/wlbc/Php/20120607/28510.html
關鍵字：mysql、表引擎、數據庫、連接
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