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

Question

I just installed Oracle, 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

Answer 1

SQL> alter session set "_ORACLE_SCRIPT"=true;  
SQL> create user sec_admin identified by "Chutinhbk123@!";