ORA-00942 – Database SOS

有一朋友数据库启动出现报ORA-01092 ORA-00704 ORA-00942错误

SQL> startup
ORACLE instance started.
Total System Global Area 3056513024 bytes
Fixed Size                  2257152 bytes
Variable Size             704646912 bytes
Database Buffers         2332033024 bytes
Redo Buffers               17575936 bytes
Database mounted.
ORA-01092: ORACLE instance terminated. Disconnection forced
ORA-00704: bootstrap process failure
ORA-00942: table or view does not exist
Process ID: 31766
Session ID: 191 Serial number: 3

数据库alert日志报错

Sat Feb 22 03:19:04 2014
ARC1 started with pid=22, OS id=31770
Sat Feb 22 03:19:04 2014
ARC2 started with pid=23, OS id=31772
Thread 1 opened at log sequence 38
  Current log# 2 seq# 38 mem# 0: /u01/app/oracle/oradata/xifenfei/redo02.log
Successful open of redo thread 1
MTTR advisory is disabled because FAST_START_MTTR_TARGET is not set
SMON: enabling cache recovery
Sat Feb 22 03:19:04 2014
ARC3 started with pid=24, OS id=31774
ARC1: Archival started
ARC2: Archival started
ARC2: Becoming the 'no FAL' ARCH
ARC2: Becoming the 'no SRL' ARCH
ARC1: Becoming the heartbeat ARCH
ARC3: Archival started
ARC0: STARTING ARCH PROCESSES COMPLETE
Errors in file /u01/app/oracle/diag/rdbms/xifenfeidg/xifenfei/trace/xifenfei_ora_31766.trc:
ORA-00704: bootstrap process failure
ORA-00942: table or view does not exist
Errors in file /u01/app/oracle/diag/rdbms/xifenfeidg/xifenfei/trace/xifenfei_ora_31766.trc:
ORA-00704: bootstrap process failure
ORA-00942: table or view does not exist
Error 704 happened during db open, shutting down database
USER (ospid: 31766): terminating the instance due to error 704
Instance terminated by USER, pid = 31766
ORA-1092 signalled during: ALTER DATABASE OPEN...
opiodr aborting process unknown ospid (31766) as a result of ORA-1092
Sat Feb 22 03:19:05 2014
ORA-1092 : opitsk aborting process

印象比较深的在某些版本中数据库由于access$丢失会出现类似错误:Oracle 11g丢失access$恢复方法，对数据库进行跟踪分析发现

PARSE ERROR #140521486058480:len=208 dep=1 uid=0 oct=9 lid=0 tim=1393010401966006 err=942
CREATE UNIQUE INDEX I_OBJ1 ON OBJ$(OBJ#,OWNER#,TYPE#) PCTFREE 10
INITRANS 2 MAXTRANS 255 STORAGE (INITIAL 64K NEXT 1024K
MINEXTENTS 1 MAXEXTENTS 2147483645 PCTINCREASE 0 OBJNO 36 EXTENTS (FILE 1 BLOCK 336))
ORA-00704: bootstrap process failure
ORA-00942: table or view does not exist
ORA-00704: bootstrap process failure
ORA-00942: table or view does not exist

创建基表的I_OBJ1失败,这种情况比较少见,难道是obj$表丢失了，或者损坏了？搜索trace文件,发现没有obj$表创建成功

[root@xifenfei trace]# grep -i "CREATE TABLE" xifenfei_ora_31822.trc
create table bootstrap$ (
CREATE TABLE TAB$("OBJ#"
CREATE TABLE CLU$("OBJ#"
CREATE TABLE FET$("TS#" N
CREATE TABLE UET$("SEGFIL
CREATE TABLE SEG$("FILE#"
CREATE TABLE UNDO$("US#"
CREATE TABLE TS$("TS#" NU
CREATE TABLE FILE$("FILE#
CREATE TABLE IND$("OBJ#"
CREATE TABLE ICOL$("OBJ#"
CREATE TABLE COL$("OBJ#"
CREATE TABLE USER$("USER#
CREATE TABLE PROXY_DATA$(
CREATE TABLE PROXY_ROLE_D
CREATE TABLE CON$("OWNER#
CREATE TABLE CDEF$("CON#"
CREATE TABLE CCOL$("CON#"

应该是obj$表没有被创建成功,通过dbv进一步分析

[oracle@xifenfei ~]$ dbv file=/u01/app/oracle/oradata/xifenfei/system01.dbf
DBVERIFY: Release 11.2.0.4.0 - Production on Sat Feb 22 05:59:41 2014
Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.
DBVERIFY - Verification starting : FILE = /u01/app/oracle/oradata/xifenfei/system01.dbf
Block Checking: DBA = 4194827, Block Type = KTB-managed data block
data header at 0x7f3100234244
kdbchk: the amount of space used is not equal to block size
        used=4595 fsc=646 avsp=3525 dtl=8120
Block 523 failed with check code 6110
DBVERIFY - Verification complete
Total Pages Examined         : 97280
Total Pages Processed (Data) : 64694
Total Pages Failing   (Data) : 0
Total Pages Processed (Index): 13128
Total Pages Failing   (Index): 0
Total Pages Processed (Other): 3569
Total Pages Processed (Seg)  : 1
Total Pages Failing   (Seg)  : 0
Total Pages Empty            : 15889
Total Pages Marked Corrupt   : 0
Total Pages Influx           : 0
Total Pages Encrypted        : 0
Highest block SCN            : 1836897 (0.1836897)

由于block损坏导致obj$表创建异常,从而使得出现此类问题，通过bbed修复坏块之后

BBED> verify
DBVERIFY - Verification starting
FILE = /u01/app/oracle/oradata/xifenfei/system01.dbf
BLOCK = 523
DBVERIFY - Verification complete
Total Blocks Examined         : 1
Total Blocks Processed (Data) : 1
Total Blocks Failing   (Data) : 0
Total Blocks Processed (Index): 0
Total Blocks Failing   (Index): 0
Total Blocks Empty            : 0
Total Blocks Marked Corrupt   : 0
Total Blocks Influx           : 0
Message 531 not found;  product=RDBMS; facility=BBED

然后启动数据库,正常启动成功

SQL> startup
ORACLE instance started.
Total System Global Area 3056513024 bytes
Fixed Size                  2257152 bytes
Variable Size             704646912 bytes
Database Buffers         2332033024 bytes
Redo Buffers               17575936 bytes
Database mounted.
Database opened.

ORA-01092 ORA-00704 ORA-00942错误比较特殊很少见,如果您遇到了类似的,无法自行解决的,请联系我们
Tel:17813235971(同微信) Q Q:107644445 E-Mail:dba@xifenfei.com

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

标题：11.1.0.7版本也会出现access$表丢失导致数据库无法启动

有网友咨询数据库启动报ora-01092：ORACLE 实例终止。强制断开连接，请求帮忙处理
数据库版本

Trace file d:\app\administrator\diag\rdbms\orcl\orcl\trace\orcl_ora_5648.trc
Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Windows NT Version V6.1 Service Pack 1
CPU                 : 1 - type 8664, 1 Physical Cores
Process Affinity    : 0x0000000000000000
Memory (Avail/Total): Ph:7605M/10239M, Ph+PgF:11979M/20477M
Instance name: orcl
Redo thread mounted by this instance: 1
Oracle process number: 18
Windows thread id: 5648, image: ORACLE.EXE (SHAD)

open数据库报ORA-01092: ORACLE 实例终止。强制断开连接

SQL> alter database open;
alter database open
*
第 1 行出现错误:
ORA-01092: ORACLE 实例终止。强制断开连接

alert日志

Thread 1 opened at log sequence 1008
  Current log# 3 seq# 1008 mem# 0: D:\APP\ADMINISTRATOR\ORADATA\ORCL\REDO03.LOG
Successful open of redo thread 1
MTTR advisory is disabled because FAST_START_MTTR_TARGET is not set
SMON: enabling cache recovery
Errors in file d:\app\administrator\diag\rdbms\orcl\orcl\trace\orcl_ora_3964.trc:
ORA-00704: 引导程序进程失败
ORA-00604: 递归 SQL 级别 1 出现错误
ORA-00942: 表或视图不存在
Error 704 happened during db open, shutting down database
USER (ospid: 3964): terminating the instance due to error 704
Instance terminated by USER, pid = 3964
ORA-1092 signalled during: ALTER DATABASE OPEN...
ORA-1092 : opiodr aborting process unknown ospid (3384_3964)

做10046分析日志

PARSE ERROR #1:len=56 dep=1 uid=0 oct=3 lid=0 tim=1796038335 err=942
select order#,columns,types from access$ where d_obj#=:1
*** 2015-01-27 21:24:50.794
----- Error Stack Dump -----
ORA-00604: 递归 SQL 级别 1 出现错误
ORA-00942: 表或视图不存在

通过这里可以知道数据库在启动的过程中由于无法访问access$表从而出现ORA-00942错误,又是由于该sql是数据库内部调用因为出现ORA-00604错误.
出现该错误的原因是由于:BUG:12733463 – ORA-704, ORA-604 AND ORA-942 ON TABLE ACCESS$ DURING STARTUP
官方提供方法

1. Shutdown (abort) the instance and clean up any OS structures used by the instance.
    Eg: Ensure there is no shared memory, semaphores etc.. left lying around
2. Retry the startup.
3. If the error persists try and recover the database or recover from a backup.

惜分飞处理方法

startup  upgrade
 create table access$
 ( d_obj#        number not null,
   order#        number not null,
   columns       raw(126),
   types         number not null)
   storage (initial 10k next 100k maxextents unlimited pctincrease 0)
/
create index i_access1 on
  access$(d_obj#, order#)
  storage (initial 10k next 100k maxextents unlimited pctincrease 0)
/

以前类似文章:Oracle 异常恢复案例汇总

标签归档：ORA-00942