I use Oracle Database 21c Express Edition. I login in SQL Plus “system as sysdba". I command “create user store identified by store_password;”. Then I have the error “ORA-65096: invalid common user or role name”. I tried "alter system set "_ORACLE_SCRIPT"=true SCOPE=SPFILE;" I “shutdown immediate” and “startup”. Then I command “create user store identified by store_password;”. Then I have the error “ORA-65096: invalid common user or role name” again. I can command "alter session set "_ORACLE_SCRIPT" = true;" then command “create user store identified by store_password;” and it works. But alter session is solution only for session. How do it permanently? Could you support me?