怎么修改数据库的名字

RENAME DATABASE old_database_name TO new_database_name;

CREATE DATABASE new_database_name;
mysqldump -u username -p old_database_name > old_database_name.sql
mysql -u username -p new_database_name < old_database_name.sql
DROP DATABASE old_database_name;

pg_dump old_database_name > old_database_name.sql
createdb new_database_name
psql -d new_database_name -f old_database_name.sql
dropdb old_database_name

USE master;
GO
ALTER DATABASE old_database_name SET SINGLE_USER WITH ROLLBACK IMMEDIATE;
GO
EXEC sp_renamedb 'old_database_name', 'new_database_name';
GO
ALTER DATABASE new_database_name SET MULTI_USER;
GO

mongodump --db old_database_name --out /path/to/backup
mongorestore --db new_database_name /path/to/backup/old_database_name
use old_database_name
db.dropDatabase()