MySQL中修改庫名的操作教程

MySQL在5.1引入了一個rename database操作，但在MySQL5.1.23後又不支持這個命令。可以說是一個實驗性的功能，沒有在生產中支持過（mysql-5.1 release在mysql-5.1.30）,那麼生產中我們有時為了追求完美需要改一下庫名。怎麼操作呢？
這裡提供一個變通的方法。
1. 創建出新庫名：

mysql>create database db_v2;
 
mysql>create database db_v2;

2.生成rename語句，從olddb裡遷移,我這裡olddb裡sbtest;

mysql>select concat("rename table ",table_schema,".",table_name," to db_v2.",table_name,";") into outfile '/tmp/rename_to_db_v2.sql' from information_schema.tables where table_schema='sbtest';
 
mysql>select concat("rename table ",table_schema,".",table_name," to db_v2.",table_name,";") into outfile '/tmp/rename_to_db_v2.sql' from information_schema.tables where table_schema='sbtest';

3.執行生成的sql

mysql>source /tmp/rename_to_db_v2.sql
 
mysql>source /tmp/rename_to_db_v2.sql

就這麼簡單可以搞定了。
Good luck!