[mysql]How to rename a database in MySQL
2012-12-12 10:31 Firefly727 阅读(1356) 评论(0) 编辑 收藏 举报In MySQL there is no support for database renaming.
In order to rename a MySQL database you can do one of the following:
1. Create new database and rename all tables in the old database to be in the new database:
CREATE database new_db_name; RENAME TABLE db_name.table1 TO new_db_name, db_name.table2 TO new_db_name; DROP database db_name;
2. In Linux shell, use mysqldump to back up the old database, then restore the dumped database under a new name using the MySQL utility. Finally, use the
drop database command to drop the old database. This option can preform badly for large database.
mysqldump -uxxxx -pxxxx -h xxxx db_name > db_name_dump.sql mysql -uxxxx -pxxxx -h xxxx -e "CREATE DATABASE new_db_name" mysql -uxxxx -pxxxx -h xxxx new_db_name < db_name_dump.sql mysql -uxxxx -pxxxx -h xxxx -e "DROP DATABASE db_name"
3. Write a simple Linux script (my favorite solution)
#!/bin/bash mysqlconn="mysql -u xxxx -pxxxx -S /var/lib/mysql/mysql.sock -h localhost" olddb=xxxx newdb=xxxx #$mysqlconn -e "CREATE DATABASE $newdb" params=$($mysqlconn -N -e "SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE table_schema='$olddb'") for name in $params; do $mysqlconn -e "RENAME TABLE $olddb.$name to $newdb.$name"; done; #$mysqlconn -e "DROP DATABASE $olddb"
4. If all your tables are MyISAM, you can rename the old database folder name:
Shut down the MySQL server,
Rename the database folder name to the new name,
Start the MySQL server.