TodoInTX的存储过程不太适合我。以下是我的尝试:

-- stored procedure rename_db: Rename a database my means of table copying.
-- Caveats: 
-- Will clobber any existing database with the same name as the 'new' database name.
-- ONLY copies tables; stored procedures and other database objects are not copied.
-- Tomer Altman (taltman@ai.sri.com)

delimiter //
DROP PROCEDURE IF EXISTS rename_db;
CREATE PROCEDURE rename_db(IN old_db VARCHAR(100), IN new_db VARCHAR(100))
BEGIN
    DECLARE current_table VARCHAR(100);
    DECLARE done INT DEFAULT 0;
    DECLARE old_tables CURSOR FOR select table_name from information_schema.tables where table_schema = old_db;
    DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = 1;

    SET @output = CONCAT('DROP SCHEMA IF EXISTS ', new_db, ';'); 
    PREPARE stmt FROM @output;
    EXECUTE stmt;

    SET @output = CONCAT('CREATE SCHEMA IF NOT EXISTS ', new_db, ';');
    PREPARE stmt FROM @output;
    EXECUTE stmt;

    OPEN old_tables;
    REPEAT
        FETCH old_tables INTO current_table;
        IF NOT done THEN
        SET @output = CONCAT('alter table ', old_db, '.', current_table, ' rename ', new_db, '.', current_table, ';');
        PREPARE stmt FROM @output;
        EXECUTE stmt;

        END IF;
    UNTIL done END REPEAT;

    CLOSE old_tables;

END//
delimiter ;

对于那些Mac用户，Sequel Pro在数据库菜单中有一个重命名数据库选项。 http://www.sequelpro.com/

实际上，最简单的答案是导出旧数据库，然后将其导入到您创建的新数据库中以替换旧数据库。当然，您应该使用phpMyAdmin或命令行来做到这一点。

重命名和操纵数据库是一个坏主意!不要这样做。(除非你是那种“黑客类型”的人，在黑暗中坐在妈妈的地下室里，吃着披萨，白天睡觉。)

你最终会遇到比你想要的更多的问题和工作。

So,

Create a new_database and name it the correct way. Go to your phpMyAdmin and open the database you want to export. Export it (check the options, but you should be OK with the defaults. You will get a file like or similar to this. The extension on this file is .sql -- phpMyAdmin SQL Dump -- version 3.2.4 -- http://www.phpmyadmin.net -- Host: localhost -- Generation Time: Jun 30, 2010 at 12:17 PM -- Server version: 5.0.90 -- PHP Version: 5.2.6 SET SQL_MODE="NO_AUTO_VALUE_ON_ZERO"; /*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT /; /!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS /; /!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION /; /!40101 SET NAMES utf8 */; -- -- Database: mydatab_online -- -- Table structure for table user CREATE TABLE IF NOT EXISTS user ( timestamp int(15) NOT NULL default '0', ip varchar(40) NOT NULL default '', file varchar(100) NOT NULL default '', PRIMARY KEY (timestamp), KEY ip (ip), KEY file (file) ) ENGINE=MyISAM DEFAULT CHARSET=latin1; -- -- Dumping data for table user INSERT INTO user (timestamp, ip, file) VALUES (1277911052, '999.236.177.116', ''), (1277911194, '999.236.177.116', '');

这将是您的.sql文件。你刚刚导出的那个。

在你的硬盘上找到它;通常在/temp中。选择具有正确名称(阅读本文的原因)的空数据库。 说:导入-开始

通过将程序输入到通常是configuration.php文件中，将程序连接到正确的数据库。刷新服务器(两个。为什么?因为我是UNIX老手，我说过。 现在，你的状态应该很好。如果你还有任何问题，请到网上来找我。

在从包含多个数据库的转储文件开始的情况下，您可以对转储执行sed:

sed -i -- "s|old_name_database1|new_name_database1|g" my_dump.sql
sed -i -- "s|old_name_database2|new_name_database2|g" my_dump.sql
...

然后导入您的转储。只要确保没有名称冲突即可。

对于mac用户，你可以使用Sequel Pro(免费)，它只提供重命名数据库的选项。虽然它不会删除旧的DB。

一旦打开相关的数据库，只需点击:数据库——>重命名数据库…

这里的大多数答案都是错误的，原因有两个:

不能只使用RENAME TABLE，因为可能存在视图和触发器。如果有触发器，RENAME TABLE将失败 如果你想“快速”(如问题中要求的)重命名一个大数据库，你不能使用mysqldump

Percona有一篇关于如何做到这一点的博客文章: https://www.percona.com/blog/2013/12/24/renaming-database-schema-mysql/

以及由西蒙·R·琼斯(Simon R Jones)发布的脚本(制作的?)我修复了在脚本中发现的一个错误。你可以在这里看到:

https://gist.github.com/ryantm/76944318b0473ff25993ef2a7186213d

以下是它的副本:

#!/bin/bash
# Copyright 2013 Percona LLC and/or its affiliates
# @see https://www.percona.com/blog/2013/12/24/renaming-database-schema-mysql/
set -e
if [ -z "$3" ]; then
    echo "rename_db <server> <database> <new_database>"
    exit 1
fi
db_exists=`mysql -h $1 -e "show databases like '$3'" -sss`
if [ -n "$db_exists" ]; then
    echo "ERROR: New database already exists $3"
    exit 1
fi
TIMESTAMP=`date +%s`
character_set=`mysql -h $1 -e "SELECT default_character_set_name FROM information_schema.SCHEMATA WHERE schema_name = '$2'" -sss`
TABLES=`mysql -h $1 -e "select TABLE_NAME from information_schema.tables where table_schema='$2' and TABLE_TYPE='BASE TABLE'" -sss`
STATUS=$?
if [ "$STATUS" != 0 ] || [ -z "$TABLES" ]; then
    echo "Error retrieving tables from $2"
    exit 1
fi
echo "create database $3 DEFAULT CHARACTER SET $character_set"
mysql -h $1 -e "create database $3 DEFAULT CHARACTER SET $character_set"
TRIGGERS=`mysql -h $1 $2 -e "show triggers\G" | grep Trigger: | awk '{print $2}'`
VIEWS=`mysql -h $1 -e "select TABLE_NAME from information_schema.tables where table_schema='$2' and TABLE_TYPE='VIEW'" -sss`
if [ -n "$VIEWS" ]; then
    mysqldump -h $1 $2 $VIEWS > /tmp/${2}_views${TIMESTAMP}.dump
fi
mysqldump -h $1 $2 -d -t -R -E > /tmp/${2}_triggers${TIMESTAMP}.dump
for TRIGGER in $TRIGGERS; do
    echo "drop trigger $TRIGGER"
    mysql -h $1 $2 -e "drop trigger $TRIGGER"
done
for TABLE in $TABLES; do
    echo "rename table $2.$TABLE to $3.$TABLE"
    mysql -h $1 $2 -e "SET FOREIGN_KEY_CHECKS=0; rename table $2.$TABLE to $3.$TABLE"
done
if [ -n "$VIEWS" ]; then
    echo "loading views"
    mysql -h $1 $3 < /tmp/${2}_views${TIMESTAMP}.dump
fi
echo "loading triggers, routines and events"
mysql -h $1 $3 < /tmp/${2}_triggers${TIMESTAMP}.dump
TABLES=`mysql -h $1 -e "select TABLE_NAME from information_schema.tables where table_schema='$2' and TABLE_TYPE='BASE TABLE'" -sss`
if [ -z "$TABLES" ]; then
    echo "Dropping database $2"
    mysql -h $1 $2 -e "drop database $2"
fi
if [ `mysql -h $1 -e "select count(*) from mysql.columns_priv where db='$2'" -sss` -gt 0 ]; then
    COLUMNS_PRIV="    UPDATE mysql.columns_priv set db='$3' WHERE db='$2';"
fi
if [ `mysql -h $1 -e "select count(*) from mysql.procs_priv where db='$2'" -sss` -gt 0 ]; then
    PROCS_PRIV="    UPDATE mysql.procs_priv set db='$3' WHERE db='$2';"
fi
if [ `mysql -h $1 -e "select count(*) from mysql.tables_priv where db='$2'" -sss` -gt 0 ]; then
    TABLES_PRIV="    UPDATE mysql.tables_priv set db='$3' WHERE db='$2';"
fi
if [ `mysql -h $1 -e "select count(*) from mysql.db where db='$2'" -sss` -gt 0 ]; then
    DB_PRIV="    UPDATE mysql.db set db='$3' WHERE db='$2';"
fi
if [ -n "$COLUMNS_PRIV" ] || [ -n "$PROCS_PRIV" ] || [ -n "$TABLES_PRIV" ] || [ -n "$DB_PRIV" ]; then
    echo "IF YOU WANT TO RENAME the GRANTS YOU NEED TO RUN ALL OUTPUT BELOW:"
    if [ -n "$COLUMNS_PRIV" ]; then echo "$COLUMNS_PRIV"; fi
    if [ -n "$PROCS_PRIV" ]; then echo "$PROCS_PRIV"; fi
    if [ -n "$TABLES_PRIV" ]; then echo "$TABLES_PRIV"; fi
    if [ -n "$DB_PRIV" ]; then echo "$DB_PRIV"; fi
    echo "    flush privileges;"
fi

将它保存到一个名为rename_db的文件中，并使用chmod +x rename_db使脚本可执行，然后像。/rename_db localhost old_db new_db那样使用它