有时候我们遇到例如以下错误：

ORA-01092: ORACLE instance terminated. Disconnection forced

ORA-00600: internal error code, arguments: [2662], [0], [5685940], [0], [5685970], [4194432], [], [], [], [], [], []

Process ID: 3157

Session ID: 1 Serial number: 3

我们能够通过bbed改动相应的数据文件头来解决，也能够通过推进scn来解决：

alter session set events 'IMMEDIATE trace name ADJUST_SCN level 1';

也能够使用oradebug来推进：

SYS@orcl11g>oradebug setmypid

Statement processed.

SYS@orcl11g>

SYS@orcl11g>

SYS@orcl11g>oradebug dumpvar sga kcsgscn_

kcslf kcsgscn_ [060017F58, 060017F88) = 005711D8 00000000 00000000 00000000 000000B5 00000000 00000000 00000000 00000000 00000000 60017C38 00000000

SYS@orcl11g>oradebug poke 0x060017F58 4 0x40000000

BEFORE: [060017F58, 060017F5C) = 005711DD

AFTER:  [060017F58, 060017F5C) = 40000000

SYS@orcl11g>oradebug dumpvar sga kcsgscn_

kcslf kcsgscn_ [060017F58, 060017F88) = 40000002 00000000 00000000 00000000 000000BC 00000000 00000000 00000000 00000000 00000000 60017C38 00000000

SYS@orcl11g>

SYS@orcl11g>

SYS@orcl11g>select dbms_flashback.get_system_change_number a from dual;

         A

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