我知道我可以单独发出一个alter表,将表存储从MyISAM更改为InnoDB。
我想知道是否有一种方法可以快速将它们全部更改为InnoDB?
我知道我可以单独发出一个alter表,将表存储从MyISAM更改为InnoDB。
我想知道是否有一种方法可以快速将它们全部更改为InnoDB?
当前回答
这是一个简单的php脚本。
<?php
@error_reporting(E_ALL | E_STRICT);
@ini_set('display_errors', '1');
$con = mysql_connect('server', 'user', 'pass');
$dbName = 'moodle2014';
$sql = "SELECT table_name FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = '".$dbName."';";
$rs = mysql_query($sql, $con);
$count = 0;
$ok = 0;
while($row = mysql_fetch_array($rs)){
$count ++;
$tbl = $row[0];
$sql = "ALTER TABLE ".$dbName.".".$tbl." ENGINE=INNODB;";
$resultado = mysql_query($sql);
if ($resultado){
$ok ++;
echo $sql."<hr/>";
}
}
if ($count == $ok){
echo '<div style="color: green"><b>ALL OK</b></div>';
}else{
echo '<div style="color: red"><b>ERRORS</b>Total tables: '.$count.', updated tables:'.$ok.'</div>';
}
其他回答
<?php
// connect your database here first
mysql_connect('host', 'user', 'pass');
$databases = mysql_query('SHOW databases');
while($db = mysql_fetch_array($databases)) {
echo "database => {$db[0]}\n";
mysql_select_db($db[0]);
$tables = mysql_query('SHOW tables');
while($tbl = mysql_fetch_array($tables)) {
echo "table => {$tbl[0]}\n";
mysql_query("ALTER TABLE {$tbl[0]} ENGINE=InnoDB");
}
}
它还没有被提及,所以我将为后人写下来:
如果你在DB服务器之间迁移(或者有其他原因你需要转储和重新加载你的dta),你可以修改mysqldump的输出:
mysqldump --no-data DBNAME | sed 's/ENGINE=MyISAM/ENGINE=InnoDB/' > my_schema.sql;
mysqldump --no-create-info DBNAME > my_data.sql;
然后再次加载:
mysql DBNAME < my_schema.sql && mysql DBNAME < my_data.sql
(此外,根据我有限的经验,这可能是一个比“实时”修改表快得多的过程。这可能取决于数据和索引的类型。)
遵循步骤:
Use MySql commands as follows, for converting to InnoDB (ALTER TABLE t1 ENGINE = InnoDB) or (ALTER TABLE t1 ENGINE = MyISAM) for MyISAM (You should do this for each individual tables, t1 is for the table name.). Write a script that loops on all tables and run the alter command Use an already available script to handle that: https://github.com/rafihaidari/convert-mysql-tables-storage-engine Try this SQL to Get all info will get all the tables information then you can change all the table from isam to InnoDB SELECT CONCAT('ALTER TABLE ',TABLE_NAME,' ENGINE=InnoDB;') FROM INFORMATION_SCHEMA.TABLES WHERE ENGINE='MyISAM' AND table_schema = 'your_DB_Name';
您可以用您最喜欢的脚本语言编写一个脚本来完成它。该脚本将执行以下操作:
Issue显示满表。对于返回的每一行,检查第二列是否显示为“BASE TABLE”而不是“VIEW”。如果它不是'VIEW',发出适当的ALTER TABLE命令。
cd / var / lib / mysql / DBNAME
Ls | grep ".frm" | cut -d"."-f1 | xargs -I{} -n1 mysql -D DBNAME -e "alter table {} ENGINE=INNODB;"-uroot -pXXXXX