关于mysql的default

请问
CREATE DATABASE paging CHARACTER SET UTF8;
和
CREATE DATABASE paging DEFAULT CHARACTER SET UTF8;都可以创建表，请问有什么区别吗？DEFAULT是可选的，具体有什么用意吗？Syntax:
CREATE {DATABASE | SCHEMA} [IF NOT EXISTS] db_name
    [create_specification] ...create_specification:
    [DEFAULT] CHARACTER SET [=] charset_name
  | [DEFAULT] COLLATE [=] collation_name