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故障处理：access$表在数据库丢失的恢复
下面是测试一把access$基表丢失的恢复方法
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1，数据库版本
www.htz.pw > select * from v$version;
BANNER
——————————————————————————–
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 – 64bit Production
PL/SQL Release 11.2.0.3.0 – Production
CORE 11.2.0.3.0 Production
TNS for Linux: Version 11.2.0.3.0 – Production
NLSRTL Version 11.2.0.3.0 – Production2，启动报错
www.htz.pw > startup force
ORACLE instance started.
Total System Global Area 237998080 bytes
Fixed Size 2227216 bytes
Variable Size 197133296 bytes
Database Buffers 33554432 bytes
Redo Buffers 5083136 bytes
Database mounted.
ORA-01092: ORACLE instance terminated. Disconnection forced
ORA-00704: bootstrap process failure
ORA-00604: error occurred at recursive SQL level 1
ORA-00942: table or view does not exist
Process ID: 5599
Session ID: 1 Serial number: 5alert下面报这个错误
这里报递归的SQL出现错误，原因表不存在。下面alert中的日志内容
Completed redo scan
read 90 KB redo, 65 data blocks need recovery
Started redo application at
Thread 1: logseq 89, block 76381
Recovery of Online Redo Log: Thread 1 Group 2 Seq 89 Reading mem 0
Mem# 0: /oracle/app/oracle/oradata/orcl1123/redo02.log
Completed redo application of 0.06MB
Completed crash recovery at
Thread 1: logseq 89, block 76561, scn 3062096
65 data blocks read, 65 data blocks written, 90 redo k-bytes read
Thread 1 advanced to log sequence 90 (thread open)
Thread 1 opened at log sequence 90
Current log# 3 seq# 90 mem# 0: /oracle/app/oracle/oradata/orcl1123/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 /oracle/app/oracle/diag/rdbms/orcl1123/orcl1123/trace/orcl1123_ora_5599.trc:
ORA-00704: bootstrap process failure
ORA-00604: error occurred at recursive SQL level 1
ORA-00942: table or view does not exist
Errors in file /oracle/app/oracle/diag/rdbms/orcl1123/orcl1123/trace/orcl1123_ora_5599.trc:
ORA-00704: bootstrap process failure
ORA-00604: error occurred at recursive SQL level 1
ORA-00942: table or view does not exist
Error 704 happened during db open, shutting down database
USER (ospid: 5599): terminating the instance due to error 704
Instance terminated by USER, pid = 5599
ORA-1092 signalled during: ALTER DATABASE OPEN…
opiodr aborting process unknown ospid (5599) as a result of ORA-1092
Tue Jun 10 20:41:24 2014
ORA-1092 : opitsk aborting process
Tue Jun 10 20:41:39 2014
Starting ORACLE instance (normal)下面通过10046的方法来实现具体在那条语句报错
[oracle@www.htz.pw sql]$sqlplus / as sysdba
SQL*Plus: Release 11.2.0.3.0 Production on Tue Jun 10 20:41:37 2014
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Connected to an idle instance.
www.htz.pw > startup mount;
ORACLE instance started.
Total System Global Area 237998080 bytes
Fixed Size 2227216 bytes
Variable Size 197133296 bytes
Database Buffers 33554432 bytes
Redo Buffers 5083136 bytes
Database mounted.
www.htz.pw > oradebug setmypid
Statement processed.
www.htz.pw > oradebug event 10046 trace name context forever,level 12;
Statement processed.
www.htz.pw > oradebug tracefile_name;
/oracle/app/oracle/diag/rdbms/orcl1123/orcl1123/trace/orcl1123_ora_5691.trc
www.htz.pw > alter database open;
alter database open
*
ERROR at line 1:
ORA-01092: ORACLE instance terminated. Disconnection forced
ORA-00704: bootstrap process failure
ORA-00604: error occurred at recursive SQL level 1
ORA-00942: table or view does not exist
Process ID: 5691
Session ID: 1 Serial number: 5这里可以看到是表access$表不存在
PARSE ERROR #182956478584:len=56 dep=1 uid=0 oct=3 lid=0 tim=1402404227784268 err=942
select order#,columns,types from access$ 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
*** 2014-06-10 20:43:47.784
USER (ospid: 5691): terminating the instance due to error 704
EXEC #182936776088:c=152978,e=465517,p=58,cr=764,cu=0,mis=0,r=0,dep=0,og=1,plh=0,tim=1402404227824845
ERROR #182936776088:err=1092 tim=14024042278248983，重建access$基表
建议的办法很简单，重启到数据库到upgrade模式，重建基表就可以了。
create table access$ /* access table */
( d_obj# number not null, /* dependent object number */
order# number not null, /* dependency order number */
columns raw("M_BVCO"), /* list of cols for this entry */
types number not null) /* access types */
storage (initial 10k next 100k maxextents unlimited pctincrease 0)
/
create index i_access1 on
access$(d_obj#, order#)
storage (initial 10k next 100k maxextents unlimited pctincrease 0)
/
www.htz.pw > create table access$ /* access table */
2 ( d_obj# number not null, /* dependent object number */
3 order# number not null, /* dependency order number */
4 columns raw("M_BVCO"), /* list of cols for this entry */
5 types number not null) /* access types */
6 storage (initial 10k next 100k maxextents unlimited pctincrease 0)
7 /
columns raw("M_BVCO"), /* list of cols for this entry */
*
ERROR at line 4:
ORA-00910: specified length too long for its datatype在其它相同的版本看到这个是126，但是不知道为什么从脚本弄出来的是一个字符串
SQL> desc access$;
Name Null? Type
—————————————– ——– —————————-
D_OBJ# NOT NULL NUMBER
ORDER# NOT NULL NUMBER
COLUMNS RAW(126)
TYPES NOT NULL NUMBER
create table access$ /* access table */
( d_obj# number not null, /* dependent object number */
order# number not null, /* dependency order number */
columns raw(126), /* list of cols for this entry */
types number not null) /* access types */
storage (initial 10k next 100k maxextents unlimited pctincrease 0)
/
www.htz.pw > create table access$ /* access table */
2 ( d_obj# number not null, /* dependent object number */
3 order# number not null, /* dependency order number */
4 columns raw(126), /* list of cols for this entry */
5 types number not null) /* access types */
6 storage (initial 10k next 100k maxextents unlimited pctincrease 0)
7 /
Table created.
www.htz.pw > create index i_access1 on
2 access$(d_obj#, order#)
3 storage (initial 10k next 100k maxextents unlimited pctincrease 0)
4
www.htz.pw > /
Index created.
www.htz.pw > startup force;
ORACLE instance started.
Total System Global Area 237998080 bytes
Fixed Size 2227216 bytes
Variable Size 197133296 bytes
Database Buffers 33554432 bytes
Redo Buffers 5083136 bytes
Database mounted.
Database opened.------------------作者介绍-----------------------
姓名：黄廷忠
现就职：Oracle中国高级服务团队
曾就职：OceanBase、云和恩墨、东方龙马等
