oracle 的最小用户名长度是多少?

what is oracle's minimum username length?

我知道支持 3 种长度,例如 "SAA" 但 "SA" 或 "S" 是可能的吗? 我的 Oracle 版本是 11.2.0.4、11.2.0.1、12.1 和 12.2。这些版本的最小用户名长度是多少?

任何oracle版本都没有用户名的最小长度限制

SQL> create user a identified by oracle;

User created.

SQL>

oracle documents中提到,

Specify the name of the user to be created. This name can contain only characters from your database character set and must follow the rules described in the section "Schema Object Naming Rules". Oracle recommends that the user name contain at least one single-byte character regardless of whether the database character set also contains multibyte characters.

另请参阅:Database Object Naming Rules