su pg ./psql mybeap UPDATE pg_database SET datname = 'newName' where datname = 'oldName';
或者
ALTER DATABASE oldName RENAME TO newName
此操作需进入别的数据库中进行操作
su pg ./psql mybeap UPDATE pg_database SET datname = 'newName' where datname = 'oldName';
ALTER DATABASE oldName RENAME TO newName