Oracle中创建新的user, 也就相应地创建了一个新的schema, 用来区别其他目录的同时, 还保存所有相关user的数据对象以及user的表.
How to create a new user? (create a new db)
首先用system(默认密码为manager)用户登陆连接数据库.
The statement create user creates a user.
In the most simple form, the create user statement is one of the following three: