重命名sys用户引起数据库启动报ORA-01092 ORA-00600 kokasgi1错误

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标题：重命名sys用户引起数据库启动报ORA-01092 ORA-00600 kokasgi1错误

作者：惜分飞©版权所有[未经本人同意,不得以任何形式转载,否则有进一步追究法律责任的权利.]

有客户和我反馈,他们为了防止有人使用sys用户进行登录,对sys用户进行了重命名,具体操作语句为:

update user$ set name='THISISSYS' where user#=0;

然后重启数据库发现数据库无法正常启动,报ORA-01092 ORA-00600 kokasgi1错误

[oracle@ecs-d75e-0618923 ~]$ sqlplus / as sysdba   SQL*Plus: Release 11.2.0.1.0 Production on Fri Aug 7 14:40:28 2020   Copyright (c) 1982, 2009, Oracle.  All rights reserved.   Connected to an idle instance.   SQL> startup mount; ORACLE instance started.   Total System Global Area 6881345536 bytes Fixed Size                  2214056 bytes Variable Size            4227860312 bytes Database Buffers         2617245696 bytes Redo Buffers               34025472 bytes Database mounted. SQL> alter database open; alter database open * ERROR at line 1: ORA-01092: ORACLE instance terminated. Disconnection forced ORA-00600: internal error code, arguments: [kokasgi1], [], [], [], [], [], [],[], [], [], [], [] Process ID: 6269 Session ID: 530 Serial number: 3

以前写过处理过类似问题,参见:ORA-600 kokasgi1故障恢复,通过特殊处理,数据库open之后,对其user#=0的用户修改为SYS.

[oracle@ecs-d75e-0618923 ~]$ sqlplus / as sysdba   SQL*Plus: Release 11.2.0.1.0 Production on Fri Aug 7 14:52:09 2020   Copyright (c) 1982, 2009, Oracle.  All rights reserved.   Connected to an idle instance.   SQL> startup mount; ORACLE instance started.   Total System Global Area 6881345536 bytes Fixed Size                  2214056 bytes Variable Size            4227860312 bytes Database Buffers         2617245696 bytes Redo Buffers               34025472 bytes Database mounted. SQL> alter database open;   Database altered.   SQL> select name from user$ where user#=0;   NAME ------------------------------ THISISSYS   SQL> update user$ set name='SYS' where user#=0;   1 row updated.   SQL> commit;   Commit complete.   SQL> shutdown abort; ORACLE instance shut down. SQL> startup; ORACLE instance started.   Total System Global Area 6881345536 bytes Fixed Size                  2214056 bytes Variable Size            4227860312 bytes Database Buffers         2617245696 bytes Redo Buffers               34025472 bytes Database mounted. Database altered.

至此恢复完成,再次sys是oracle内部默认的超级用户,系统很多调用在程序中写死的sys.,对其用户不能进行重命名操作.