ORA-600 12807 – 专业Oracle数据库恢复，或许是您恢复数据的最后机会@phone:17813235971

标题：由于con$.con#值达到极限，触发数据库增加约束报ORA-600 12807错误

有客户数据库报ORA-600 12807错误，导致数据库无法创建任何约束(带约束条件的表也无法创建)，alert 日志报错如下

2026-10-19T09:33:41.779082+08:00
Errors in file /oracle/database/diag/rdbms/oradb/oradb1/trace/oradb1_ora_184458.trc
ORA-00600: 内部错误代码, 参数: [12807], [], [], [], [], [], [], [], [], [], [], []
Use ADRCI or Support Workbench to package the incident.
See Note 411.1 at My Oracle Support for error and packaging details.
2026-10-19T09:33:42.080313+08:00
Errors in file /oracle/database/diag/rdbms/oradb/oradb1/trace/oradb1_ora_221081.trc
ORA-00600: 内部错误代码, 参数: [12807], [], [], [], [], [], [], [], [], [], [], []
Use ADRCI or Support Workbench to package the incident.
See Note 411.1 at My Oracle Support for error and packaging details.
2026-10-19T09:33:42.401635+08:00
DDE: Problem Key 'ORA 600 [12807]' was completely flood controlled (0x6)
Further messages for this problem key will be suppressed for up to 10 minutes

对应的trace文件报错

*** 2026-10-20T23:01:14.835258+08:00
dbkedDefDump(): Starting incident default dumps (flags=0x2, level=3, mask=0x0)
[TOC00004]
----- Current SQL Statement for this session (sql_id=czyqxdfu45w1c) -----
CREATE TABLE VT10RMC7BHYU76DDQ3DHV75RMV (KSQL_SEQ INT, FID VARCHAR2 (44) NOT NULL
…………………… 
FInPriceBizDate TIMESTAMP, CONSTRAINT ZC8SOAHBADTGB7OIBG PRIMARY KEY (FID)) NOLOGGING
[TOC00004-END]

[TOC00005]
----- Call Stack Trace -----
calling              call     entry                argument values in hex      
location             type     point                (? means dubious value)     
-------------------- -------- -------------------- ----------------------------
ksedst1()+95         call     kgdsdst()            7FFF09990520 000000002
                                                   7FFF0998A860 ? 7FFF0998A978 ?
                                                   000000000 000000082 ?
ksedst()+58          call     ksedst1()            000000000 000000001
                                                   7FFF0998A860 ? 7FFF0998A978 ?
                                                   000000000 ? 000000082 ?
dbkedDefDump()+2344  call     ksedst()             000000000 000000001 ?
8                                                  7FFF0998A860 ? 7FFF0998A978 ?
                                                   000000000 ? 000000082 ?
ksedmp()+577         call     dbkedDefDump()       000000003 000000002
                                                   7FFF0998A860 ? 7FFF0998A978 ?
                                                   000000000 ? 000000082 ?
dbgexPhaseII()+2092  call     ksedmp()             0000003EB 000000002 ?
                                                   7FFF0998A860 ? 7FFF0998A978 ?
                                                   000000000 ? 000000082 ?
dbgexExplicitEndInc  call     dbgexPhaseII()       7FBAB95976D8 7FBAB47D3148
()+285                                             7FFF09991700 7FFF0998A978 ?
                                                   000000000 ? 000000082 ?
dbgeEndDDEInvocatio  call     dbgexExplicitEndInc  7FBAB95976D8 7FBAB47D3148
nImpl()+314                   ()                   7FBAB47D39F0 7FFF0998A978 ?
                                                   000000000 ? 000000082 ?
kqrHashTableInsert(  call     dbgeEndDDEInvocatio  7FBAB95976D8 7FBAB47D3148
)+2446                        nImpl()              7FBAB95D79C0 7FFF0998A978 ?
                                                   7FBAB95D79C0 000000082 ?
kqrRelinkToHashTabl  call     kqrHashTableInsert(  000000000 ? 16F5F05F70 ?
e()+226                       )                    15B7ED3EC0 ? FFFFFFFFF6B64B6B
                                                   7FBAB95D79C0 ? 2400000000
kqrUpdateHashTable(  call     kqrRelinkToHashTabl  000000000 ? 16F5F05F70 ?
)+417                         e()                  15B7ED3EC0 ?
                                                   FFFFFFFFF6B64B6B ?
                                                   7FBAB95D79C0 ? 2400000000 ?
kqrfpo()+729         call     kqrUpdateHashTable(  7FBAB95D79C0 16F5F05F70 ?
                              )                    FFFFFFFFF5F05F70 00000000B
                                                   000000003 ? 2400000000 ?
kkdcnco()+1749       call     kqrfpo()             16F5F05F70 16F5F05F70 ?
                                                   FFFFFFFFF5F05F70 ?
                                                   00000000B ? 24886FB6D8
                                                   2400000000 ?
kkdcico()+339        call     kkdcnco()            000000057 7FBAB39D5420
                                                   7FFF09992B80 16167E3500
                                                   000000000 2400000000 ?
ctcdrv()+40399       call     kkdcico()            000000057 7FBAB39D53F8
                                                   7FBAB9478950 16167E3500
                                                   14BF81D188 2400000000 ?
opiexe()+25553       call     ctcdrv()             7FBAB9479388 7FFF099B5D60
                                                   7FFF099B5E50 16167E3500 ?
                                                   14BF81D188 ? 2400000000 ?
opiosq0()+4494       call     opiexe()             000000004 7FFF099B5D60 ?
                                                   7FFF099B64A0 16167E3500 ?
                                                   14BF81D188 ? 2400000000 ?
kpooprx()+287        call     opiosq0()            000000003 7FFF099B5D60 ?
                                                   7FBAB95D79C0 ? 0000000A4
                                                   000000000 000000001
kpoal8()+821         call     kpooprx()            7FFF099BA5C4 7FBAB3967B58
                                                   000000736 000000001 000000000
                                                   0000000A4
opiodr()+1202        call     kpoal8()             00000005E 000000026
                                                   7FFF099BA5C0 000000001 ?
                                                   000000000 ? 0000000A4 ?
ttcpip()+1218        call     opiodr()             00000005E 000000026
                                                   7FFF099BA5C0 ? 000000000
                                                   000000000 ? 0000000A4 ?
opitsk()+1900        call     ttcpip()             7FBAB9601B30 ? 000000026 ?
                                                   7FFF099BA5C0 000000000 ?
                                                   7FFF099BA020 7FFF099BA810 ?
opiino()+936         call     opitsk()             000000000 000000000
                                                   7FFF099BA5C0 ? 000000000 ?
                                                   7FFF099BA020 ? 7FFF099BA810 ?
opiodr()+1202        call     opiino()             00000003C 000000004
                                                   7FFF099BC198 000000000 ?
                                                   7FFF099BA020 ? 7FFF099BA810 ?
opidrv()+1094        call     opiodr()             00000003C 000000004
                                                   7FFF099BC198 ? 000000000
                                                   7FFF099BA020 ? 7FFF099BA810 ?
sou2o()+165          call     opidrv()             00000003C 000000004
                                                   7FFF099BC198 000000000 ?
                                                   7FFF099BA020 ? 7FFF099BA810 ?
opimai_real()+422    call     sou2o()              7FFF099BC131 00000003C
                                                   000000004 7FFF099BC198
                                                   7FFF099BA020 ? 7FFF099BA810 ?
ssthrdmain()+417     call     opimai_real()        000000000 7FFF099BC988
                                                   000000004 ? 7FFF099BC198 ?
                                                   7FFF099BA020 ? 7FFF099BA810 ?
main()+256           call     ssthrdmain()         000000000 000000002
                                                   7FFF099BC988 000000001
                                                   000000000 7FFF099BA810 ?
__libc_start_main()  call     main()               000000002 7FFF099BCBC8
+245                                               7FFF099BC988 ? 000000001 ?
                                                   000000000 ? 7FFF099BA810 ?
_start()+41          call     __libc_start_main()  000DCD110 000000002
                                                   7FFF099BCBC8 000000000 ?
                                                   000000000 ? 7FFF099BA810 ?
[TOC00005-END]

问题重现

[oracle@oradb1 ~]$ sqlplus / as sysdba

SQL*Plus: Relorae 19.0.0.0.0 - Production on Tue Oct 20 21:45:57 2026
Version 19.14.0.0.0

Copyright (c) 1982, 2021, Oracle.  All rights reserved.


Connected to:
Oracle Database 19c Enterprise Edition Relorae 19.0.0.0.0 - Production
Version 19.14.0.0.0

SQL> create table t_test1020(id number not null);
create table t_test1020(id number not null)
*
ERROR at line 1:
ORA-00600: internal error code, arguments: [12807], [], [], [], [], [], [], [],
[], [], [], []

分析故障原因(con$.con#=4294967294(_NEXT_CONSTRAINT)达到了理论最大值,无法继续增加所以报ORA-600 12807错误)

SQL> select 4294967294 - con# from sys.con$ where name='_NEXT_CONSTRAINT';

4294967294-CON#
---------------
              0

SQL> select max(con#) from sys.con$;

 MAX(CON#)
----------
4294967294

根据oracle官方描述打上25343563 patch可以实现con$.con#循环利用

[oracle@oradb1 25343563]$ opatch lspatches
25343563;MECHANISM TO REUSE CON#
33561310;OJVM RELoraE UPDATE: 19.14.0.0.220118 (33561310)
33529556;OCW RELoraE UPDATE 19.14.0.0.0 (33529556)
33515361;Database Relorae Update : 19.14.0.0.220118 (33515361)

OPatch succeeded.

测试问题解决

SQL> create table t_test1020(id number not null);

Table created.

SQL> 
SQL> select constraint_name
  2  from user_cons_columns
  3  where table_name = 'T_TEST1020'
  4    and column_name = 'ID';

CONSTRAINT_NAME
--------------------------------------------------------------------------------
SYS_C0012094

SQL> SELECT CON# FROM CON$ WHERE NAME='SYS_C0012094';

      CON#
----------
     12094

SQL> SELECT COUNT(1) FROM con$recycle;

  COUNT(1)
----------
 100032699

SQL> select  con# from sys.con$ where name='_NEXT_CONSTRAINT';

      CON#
----------
4294967294

分析实现原因，其实oracle是通过创建sys.con$recycle表，把使用过的记录存储到这个表里面(新删除的约束的con#也会自动增加到这个表里面)，后续使用直接从这个表中拿数据出来使用，从而实现con$中的con#循环使用，从而解决了ORA-600 12807问题,如果是12c之前版本参考:ORA-600 12807（CON$.CON#达到最大值）处理

联系：手机/微信(+86 17813235971) QQ(107644445)

标题：ORA-600 12807 修复

这次阳了有点严重，客户现场打patch无法去，在家里远程值守,在电脑前面闲着就查询和重现了最近朋友和我说的他们的客户遇到ORA-600 12807的故障.查询了下mos,基本上可以确认是由于CON$.CON#达到理论最大值无法继续增加从而报该错误,参考文档:
Mechanism to Recycle Database Constraint Identifiers (Doc ID 2925056.1)
Bug 13781691 – ORA-600 [12807] if CON$.CON# very high due to bug 13784384 (Doc ID 13781691.8)
Bug 25343563 – Mechanism to Implement Constraint Identifier (con#) Recycling (Doc ID 25343563.8)
在12及其之后的版本中oracle发布了patch 25343563 并设置event启用该patch进行解决.但是如果是12c之前版本,官方没有提供直接的解决方案.最基本的解决方法就是进行数据逻辑迁移,以及避免频繁创建约束导致con$.con#消耗太大

通过试验重现该错误

SQL> create table t_xff  (id number not null,name varchar2(100) not null);
create table t_xff  (id number not null,name varchar2(100) not null)
*
ERROR at line 1:
ORA-00600: internal error code, arguments: [12807], [], [], [], [], [], [], [],
[], [], [], []

SQL>  create table t_xff  (id number,name varchar2(100));

Table created.

SQL> alter table t_xff add primary key(id);
alter table t_xff add primary key(id)
*
ERROR at line 1:
ORA-00600: internal error code, arguments: [12807], [], [], [], [], [], [], [],
[], [], [], []


SQL> select con# from sys.con$ where name='_NEXT_CONSTRAINT';

      CON#
----------
4294967294

通过一些底层分析,并对部分底层基表进行patch实现数据库可以继续创建约束

SQL>  alter table t_xff add primary key(id);

Table altered.

使用临时的patch方法,可以快速的恢复业务,后续找适当时间点安排迁移.
在此提醒:对于一些创建中间对象或者临时对象频繁的系统(特别是大量主键,not null等)注意检查该值距离天花板距离,如果比较接近了最好安排一次逻辑迁移和找出来原因(是oracle bug还是应用触发)

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Category Archives: ORA-600 12807

由于con$.con#值达到极限，触发数据库增加约束报ORA-600 12807错误

ORA-600 12807 修复

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