I just installed oracle11g, and it was missing the Scott schema. So i am trying to generate it myself. I got the sql script of "Scott" schema, but when i try to run the query "create user Scott identified by tiger;" it displays the following error:

ORA-65096: invalid common user or role name in oracle.

Basically it is not allowing me to create a user "Scott". Why is that, and how can I fix my problem?

Before creating the user run :

alter session set "_ORACLE_SCRIPT"=true;