解決 ORA-65096: invalid common user or role name問題

在oracle執行:create user tff identified by tff 的
時候報錯了:ORA-65096: invalid common user or role name

SQL> create user tff identified by tff;
create user tff identified by tff
ERROR at line 1:
ORA-65096: invalid common user or role name

報錯：ORA-65096: invalid common user or role name(公用用戶名或角色名無效).

錯誤緣由：用戶想在PDBORCL中建立tff用戶，卻未設置會話container到PDB，而在CDB中建立公有用戶因沒法經過名稱或角色驗證出錯.

解決方法:
一、查看Oracle 12c的版本

SQL> select * from v$version;
select sys_context ('USERENV', 'CON_NAME') from dual;

二、咱們能夠經過ALTER SESSION SET CONTAINER 指定其餘容器

SQL> alter pluggable database PDB19 open;

四、查看容器

SQL>select con_id,dbid,NAME,OPEN_MODE from v$pdbs;

五、切換容器到PDB19

六、查看當前使用容器

SQL>select sys_context ('USERENV', 'CON_NAME') from dual;

七、建立用戶

create user tff identified by tff;
grant dba to tff

以上問題就能夠解決了.