有网友咨询数据库启动报ORA-00600: internal error code, arguments: [16703], [1403], [32]错误,这个错误和以往遇到的不太一样，以前恢复的一些案例
tab$恢复错误汇总
10g数据库遭遇ORA-600 16703
12C数据库遭遇ORA-600 16703
tab$被恶意删除sys用户之外记录
ORA-600 16703故障解析—tab$表被清空
警告：互联网中有oracle介质被注入恶意程序导致—ORA-600 16703

SQL> startup
ORACLE 例程已经启动。
Total System Global Area 1.3892E+10 bytes
Fixed Size                  5420776 bytes
Variable Size            2281703704 bytes
Database Buffers         1.1576E+10 bytes
Redo Buffers               28131328 bytes
数据库装载完毕。
ORA-01092: ORACLE instance terminated. Disconnection forced
ORA-00704: bootstrap process failure
ORA-00704: bootstrap process failure
ORA-00600: internal error code, arguments: [16703], [1403], [32], [], [], [],[], [], [], [], [], []
进程 ID: 9512
会话 ID: 272 序列号: 22801

查看alert日志

Sun Jun 30 14:47:55 2019
SMON: enabling cache recovery
Errors in file D:\APP\SHORCL\diag\rdbms\orcl\orcl\trace\orcl_ora_7824.trc  (incident=177881) (PDBNAME=CDB$ROOT):
ORA-00600: 内部错误代码, 参数: [16703], [1403], [32], [], [], [], [], [], [], [], [], []
Incident details in: D:\APP\SHORCL\diag\rdbms\orcl\orcl\incident\incdir_177881\orcl_ora_7824_i177881.trc
Use ADRCI or Support Workbench to package the incident.
See Note 411.1 at My Oracle Support for error and packaging details.
Sun Jun 30 14:47:57 2019
Errors in file D:\APP\SHORCL\diag\rdbms\orcl\orcl\trace\orcl_ora_7824.trc:
ORA-00704: 引导程序进程失败
ORA-00600: 内部错误代码, 参数: [16703], [1403], [32], [], [], [], [], [], [], [], [], []
Sun Jun 30 14:47:57 2019
Errors in file D:\APP\SHORCL\diag\rdbms\orcl\orcl\trace\orcl_ora_7824.trc:
ORA-00704: 引导程序进程失败
ORA-00704: 引导程序进程失败
ORA-00600: 内部错误代码, 参数: [16703], [1403], [32], [], [], [], [], [], [], [], [], []
Sun Jun 30 14:47:57 2019
Errors in file D:\APP\SHORCL\diag\rdbms\orcl\orcl\trace\orcl_ora_7824.trc:
ORA-00704: 引导程序进程失败
ORA-00704: 引导程序进程失败
ORA-00600: 内部错误代码, 参数: [16703], [1403], [32], [], [], [], [], [], [], [], [], []
Sun Jun 30 14:47:57 2019
Error 704 happened during db open, shutting down database
USER (ospid: 7824): terminating the instance due to error 704
Sun Jun 30 14:48:02 2019
Instance terminated by USER, pid = 7824
ORA-1092 signalled during: ALTER DATABASE OPEN...

根据以往经验,这个很可能也是tab$数据被删除导致。经过分析,该库的区别是由于该库是12C的pdb

通过分析确认,确实是tab$数据被删除,通过bbed反向删除处理,实现时间完美恢复,open之后删除恶意脚本,数据库直接使用,实现完美恢复

SQL> startup mount
ORACLE 例程已经启动。
Total System Global Area 1.3892E+10 bytes
Fixed Size                  5420776 bytes
Variable Size            2281703704 bytes
Database Buffers         1.1576E+10 bytes
Redo Buffers               28131328 bytes
数据库装载完毕。
SQL> alter database open;
数据库已更改。
SQL> select 'drop '||object_type||' '||owner||'.'||object_name||';' from dba_obj
ects where object_name in('DBMS_SUPPORT_DBMONITOR','DBMS_SUPPORT_DBMONITORP');
'DROP'||OBJECT_TYPE||''||OWNER||'.'||OBJECT_NAME||';'
--------------------------------------------------------------------------------
drop TRIGGER SYS.DBMS_SUPPORT_DBMONITOR;
drop PROCEDURE SYS.DBMS_SUPPORT_DBMONITORP;
SQL>
SQL> drop TRIGGER SYS.DBMS_SUPPORT_DBMONITOR;
触发器已删除。
SQL> drop PROCEDURE SYS.DBMS_SUPPORT_DBMONITORP;
过程已删除。
SQL> shutdown immediate;
数据库已经关闭。
已经卸载数据库。
ORACLE 例程已经关闭。
SQL> startup
ORACLE 例程已经启动。
Total System Global Area 1.3892E+10 bytes
Fixed Size                  5420776 bytes
Variable Size            2281703704 bytes
Database Buffers         1.1576E+10 bytes
Redo Buffers               28131328 bytes
数据库装载完毕。
数据库已经打开。
SQL> show pdbs;
    CON_ID CON_NAME                       OPEN MODE  RESTRICTED
---------- ------------------------------ ---------- ----------
         2 PDB$SEED                       READ ONLY  NO
         3 PDBORCL                        MOUNTED
SQL> alter session set  container=pdborcl;
会话已更改。
SQL> alter database open;
数据库已更改。