这是我写的一个批处理文件，从命令行自动化，但它适用于Windows/MS-DOS。

语法:rename_mysqldb database newdatabase -u [user] -p[password]

:: ***************************************************************************
:: FILE: RENAME_MYSQLDB.BAT
:: ***************************************************************************
:: DESCRIPTION
:: This is a Windows /MS-DOS batch file that automates renaming a MySQL database 
:: by using MySQLDump, MySQLAdmin, and MySQL to perform the required tasks.
:: The MySQL\bin folder needs to be in your environment path or the working directory.
::
:: WARNING: The script will delete the original database, but only if it successfully
:: created the new copy. However, read the disclaimer below before using.
::
:: DISCLAIMER
:: This script is provided without any express or implied warranties whatsoever.
:: The user must assume the risk of using the script.
::
:: You are free to use, modify, and distribute this script without exception.
:: ***************************************************************************

:INITIALIZE
@ECHO OFF
IF [%2]==[] GOTO HELP
IF [%3]==[] (SET RDB_ARGS=--user=root) ELSE (SET RDB_ARGS=%3 %4 %5 %6 %7 %8 %9)
SET RDB_OLDDB=%1
SET RDB_NEWDB=%2
SET RDB_DUMPFILE=%RDB_OLDDB%_dump.sql
GOTO START

:START
SET RDB_STEP=1
ECHO Dumping "%RDB_OLDDB%"...
mysqldump %RDB_ARGS% %RDB_OLDDB% > %RDB_DUMPFILE%
IF %ERRORLEVEL% NEQ 0 GOTO ERROR_ABORT
SET RDB_STEP=2
ECHO Creating database "%RDB_NEWDB%"...
mysqladmin %RDB_ARGS% create %RDB_NEWDB%
IF %ERRORLEVEL% NEQ 0 GOTO ERROR_ABORT
SET RDB_STEP=3
ECHO Loading dump into "%RDB_NEWDB%"...
mysql %RDB_ARGS% %RDB_NEWDB% < %RDB_DUMPFILE%
IF %ERRORLEVEL% NEQ 0 GOTO ERROR_ABORT
SET RDB_STEP=4
ECHO Dropping database "%RDB_OLDDB%"...
mysqladmin %RDB_ARGS% drop %RDB_OLDDB% --force
IF %ERRORLEVEL% NEQ 0 GOTO ERROR_ABORT
SET RDB_STEP=5
ECHO Deleting dump...
DEL %RDB_DUMPFILE%
IF %ERRORLEVEL% NEQ 0 GOTO ERROR_ABORT
ECHO Renamed database "%RDB_OLDDB%" to "%RDB_NEWDB%".
GOTO END

:ERROR_ABORT
IF %RDB_STEP% GEQ 3 mysqladmin %RDB_ARGS% drop %NEWDB% --force
IF %RDB_STEP% GEQ 1 IF EXIST %RDB_DUMPFILE% DEL %RDB_DUMPFILE%
ECHO Unable to rename database "%RDB_OLDDB%" to "%RDB_NEWDB%".
GOTO END

:HELP
ECHO Renames a MySQL database.
ECHO Usage: %0 database new_database [OPTIONS]
ECHO Options: Any valid options shared by MySQL, MySQLAdmin and MySQLDump.
ECHO          --user=root is used if no options are specified.
GOTO END    

:END
SET RDB_OLDDB=
SET RDB_NEWDB=
SET RDB_ARGS=
SET RDB_DUMP=
SET RDB_STEP=

这是我在Windows上写的重命名数据库的批处理脚本:

@echo off
set olddb=olddbname
set newdb=newdbname
SET count=1
SET act=mysql -uroot -e "select table_name from information_schema.tables where table_schema='%olddb%'"
mysql -uroot -e "create database %newdb%"
echo %act%
 FOR /f "tokens=*" %%G IN ('%act%') DO (
  REM echo %count%:%%G
  echo mysql -uroot -e "RENAME TABLE %olddb%.%%G to %newdb%.%%G"
  mysql -uroot -e "RENAME TABLE %olddb%.%%G to %newdb%.%%G"
  set /a count+=1
 )
mysql -uroot -e "drop database %olddb%"

这是我所使用的:

$ mysqldump -u root -p olddb >~/olddb.sql
$ mysql -u root -p
mysql> create database newdb;
mysql> use newdb
mysql> source ~/olddb.sql
mysql> drop database olddb;

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…

最简单的方法是使用HeidiSQL软件。它是免费的，开源的。它可以在Windows和任何带有Wine的Linux上运行(在Linux、BSD、Solaris和Mac OS X上运行Windows应用程序)。

这是HeidiSQL的下载，转到 http://www.heidisql.com/download.php。

下载Wine，请登录http://www.winehq.org/。

要在HeidiSQL中重命名数据库，只需右键单击数据库名称并选择“Edit”。然后输入一个新名称并按“OK”。

就是这么简单。

这是一个快速生成重命名sql脚本的方法，如果你有很多表要移动。

SELECT DISTINCT CONCAT('RENAME TABLE ', t.table_schema,'.', t.table_name, ' TO ',     
t.table_schema, "_archive", '.', t.table_name, ';' ) as Rename_SQL 
FROM information_schema.tables t
WHERE table_schema='your_db_name' ;