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MySQL在5.1引入了一个rename database操作,但在MySQL5.1.23后又不支持这个命令。可以说是一个实验性的功能,没有在生产中支持过(mysql-5.1 release在mysql-5.1.30),那么生产中我们有时为了追求完美需要改一下库名。怎么操作呢?
这里提供一个变通的方法。
1. 创建出新库名:
mysql>create database db_v2; mysql>create database db_v2;</div>
2.生成rename语句,从olddb里迁移,我这里olddb里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';</div>
3.执行生成的sql
mysql>source /tmp/rename_to_db_v2.sql mysql>source /tmp/rename_to_db_v2.sql</div>
就这么简单可以搞定了。
Good luck!