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标题：11.1.0.7版本也会出现access$表丢失导致数据库无法启动
作者：惜分飞©版权所有[未经本人同意,不得以任何形式转载,否则有进一步追究法律责任的权利.]
有网友咨询数据库启动报ora-01092：ORACLE 实例终止。强制断开连接，请求帮忙处理
数据库版本
Trace file d:\app\administrator\diag\rdbms\orcl\orcl\trace\orcl_ora_5648.trc Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options Windows NT Version V6.1 Service Pack 1 CPU : 1 - type 8664, 1 Physical Cores Process Affinity : 0x0000000000000000 Memory (Avail/Total): Ph:7605M/10239M, Ph+PgF:11979M/20477M Instance name: orcl Redo thread mounted by this instance: 1 Oracle process number: 18 Windows thread id: 5648, image: ORACLE.EXE (SHAD)
open数据库报ORA-01092: ORACLE 实例终止。强制断开连接
SQL> alter database open; alter database open * 第 1 行出现错误: ORA-01092: ORACLE 实例终止。强制断开连接
alert日志
Thread 1 opened at log sequence 1008 Current log# 3 seq# 1008 mem# 0: D:\APP\ADMINISTRATOR\ORADATA\ORCL\REDO03.LOG Successful open of redo thread 1 MTTR advisory is disabled because FAST_START_MTTR_TARGET is not set SMON: enabling cache recovery Errors in file d:\app\administrator\diag\rdbms\orcl\orcl\trace\orcl_ora_3964.trc: ORA-00704: 引导程序进程失败 ORA-00604: 递归 SQL 级别 1 出现错误 ORA-00942: 表或视图不存在 Error 704 happened during db open, shutting down database USER (ospid: 3964): terminating the instance due to error 704 Instance terminated by USER, pid = 3964 ORA-1092 signalled during: ALTER DATABASE OPEN... ORA-1092 : opiodr aborting process unknown ospid (3384_3964)
做10046分析日志
PARSE ERROR #1:len=56 dep=1 uid=0 oct=3 lid=0 tim=1796038335 err=942 select order#,columns,types from access$ 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$(d_obj#, order#) storage (initial 10k next 100k maxextents unlimited pctincrease 0) /
以前类似文章:Oracle 异常恢复案例汇总
Unavailable Bootstrap Object ACCESS$ Causes ORA-704 ORA-604 ORA-942 When Opening Database (Doc ID 1383179.1)
APPLIES TO: Oracle Database - Enterprise Edition - Version 11.2.0.2 and later Information in this document applies to any platform. checked for relevance on 08-Oct-2014[This section is not visible to customers.] SYMPTOMS When attempting to start the database using sqlplus as sysdba, the following errors are raised: ORA-00704: bootstrap process failure ORA-00604: error occurred at recursive SQL level 1 ORA-00942: table or view does not exist The errors are shown in the sqlplus output but are also available in the alert.log Sql trace on startup shows: PARSE ERROR #4573972496:len=56 dep=1 uid=0 oct=3 lid=0 tim=5805202237641 err=942 select order#,columns,types from access$ where d_obj#=:1 ORA-00704: bootstrap process failure ORA-00604: error occurred at recursive SQL level 1 ORA-00942: table or view does not exist ORA-00704: bootstrap process failure ORA-00604: error occurred at recursive SQL level 1 ORA-00942: table or view does not exist CAUSE The object access$ is not available. Access$ is a bootstrap object which is necessary to start the DB. SOLUTION 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. REFERENCES BUG:12733463 - ORA-704, ORA-604 AND ORA-942 ON TABLE ACCESS$ DURING STARTUP NOTE:18494.1 - OERR: ORA 704 "bootstrap process failure"