分类目录归档：Oracle

sys用户密码含$ sqlplus登录数据库诡异事件分析

发表于 2011 年 10 月 17 日 由 惜分飞 
[oracle@ECP-UC-DB1 ~]$ sqlplus / as sysdba

SQL*Plus: Release 10.2.0.4.0 - Production on Mon Oct 17 23:37:51 2011

Copyright (c) 1982, 2007, Oracle.  All Rights Reserved.


Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> alter user sys identified by "ab$";

User altered.

SQL> exit
Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@ECP-UC-DB1 ~]$ sqlplus sys/ab$ as sysdba

SQL*Plus: Release 10.2.0.4.0 - Production on Mon Oct 17 23:38:53 2011

Copyright (c) 1982, 2007, Oracle.  All Rights Reserved.


Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> show parameter name;

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
db_file_name_convert                 string
db_name                              string      test
db_unique_name                       string      test
global_names                         boolean     FALSE
instance_name                        string      test
lock_name_space                      string
log_file_name_convert                string
service_names                        string      test

SQL> exit
Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@ECP-UC-DB1 ~]$ sqlplus sys/ab$abc as sysdba

SQL*Plus: Release 10.2.0.4.0 - Production on Mon Oct 17 23:39:05 2011

Copyright (c) 1982, 2007, Oracle.  All Rights Reserved.


Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> exit
Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@ECP-UC-DB1 ~]$ sqlplus sys/ab$@abc as sysdba

SQL*Plus: Release 10.2.0.4.0 - Production on Mon Oct 17 23:40:06 2011

Copyright (c) 1982, 2007, Oracle.  All Rights Reserved.


Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> show parameter name;

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
db_file_name_convert                 string
db_name                              string      test
db_unique_name                       string      test
global_names                         boolean     FALSE
instance_name                        string      test
lock_name_space                      string
log_file_name_convert                string
service_names                        string      test
SQL> exit
Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@ECP-UC-DB1 ~]$ sqlplus sys/ab$@abc11 as sysdba

SQL*Plus: Release 10.2.0.4.0 - Production on Mon Oct 17 23:44:11 2011

Copyright (c) 1982, 2007, Oracle.  All Rights Reserved.


Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> show parameter name;

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
db_file_name_convert                 string
db_name                              string      test
db_unique_name                       string      test
global_names                         boolean     FALSE
instance_name                        string      test
lock_name_space                      string
log_file_name_convert                string
service_names                        string      test
SQL>

通过以上sql发现，把sys的密码改为ab$后，无论是什么tns都可以登录数据库，而且都是本地数据库，是不是感觉很诡异，其实你仔细观察发现，密码中有了$，使得$@的操作都变成了无效的，其实就是sqlplus sys/123(随意) as sysdba方式登录本地数据库

[oracle@ECP-UC-DB1 ~]$ sqlplus sys/123 as sysdba

SQL*Plus: Release 10.2.0.4.0 - Production on Mon Oct 17 23:48:23 2011

Copyright (c) 1982, 2007, Oracle.  All Rights Reserved.


Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL>
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Oracle 小升级 opatch apply使用

发表于 2011 年 10 月 17 日 由 惜分飞

这里记录的是Oracle 升级到10.2.0.4后，出现EM不能正常启动情况下，Oracle提示需要打上Patch 8350262，下面是记录打补丁过程

[oracle@ocp ~]$ unzip ~/p8350262_10204_Generic.zip 
Archive:  /home/oracle/p8350262_10204_Generic.zip
   creating: 8350262/
  inflating: 8350262/killDBConsole   
   creating: 8350262/files/
   creating: 8350262/files/sysman/
   creating: 8350262/files/sysman/jlib/
   creating: 8350262/files/sysman/jlib/emCORE.jar/
   creating: 8350262/files/sysman/jlib/emCORE.jar/oracle/
   creating: 8350262/files/sysman/jlib/emCORE.jar/oracle/sysman/
   creating: 8350262/files/sysman/jlib/emCORE.jar/oracle/sysman/eml/
   creating: 8350262/files/sysman/jlib/emCORE.jar/oracle/sysman/eml/sec/
   creating: 8350262/files/sysman/jlib/emCORE.jar/oracle/sysman/eml/sec/fsc/
  inflating: 8350262/files/sysman/jlib/emCORE.jar/oracle/sysman/eml/sec/fsc/FSWalletUtil.class  
   creating: 8350262/files/sysman/jlib/emCORE.jar/oracle/sysman/eml/sec/util/
  inflating: 8350262/files/sysman/jlib/emCORE.jar/oracle/sysman/eml/sec/util/RootCert.class  
  inflating: 8350262/files/sysman/jlib/emCORE.jar/oracle/sysman/eml/sec/util/SecConstants.class  
   creating: 8350262/files/sysman/jlib/emCORE.jar/oracle/sysman/eml/sec/rep/
  inflating: 8350262/files/sysman/jlib/emCORE.jar/oracle/sysman/eml/sec/rep/RepWalletUtil.class  
   creating: 8350262/files/sysman/jlib/emd_java.jar/
   creating: 8350262/files/sysman/jlib/emd_java.jar/oracle/
   creating: 8350262/files/sysman/jlib/emd_java.jar/oracle/sysman/
   creating: 8350262/files/sysman/jlib/emd_java.jar/oracle/sysman/eml/
   creating: 8350262/files/sysman/jlib/emd_java.jar/oracle/sysman/eml/sec/
   creating: 8350262/files/sysman/jlib/emd_java.jar/oracle/sysman/eml/sec/fsc/
  inflating: 8350262/files/sysman/jlib/emd_java.jar/oracle/sysman/eml/sec/fsc/FSWalletUtil.class  
   creating: 8350262/files/sysman/jlib/emd_java.jar/oracle/sysman/eml/sec/util/
  inflating: 8350262/files/sysman/jlib/emd_java.jar/oracle/sysman/eml/sec/util/RootCert.class  
  inflating: 8350262/files/sysman/jlib/emd_java.jar/oracle/sysman/eml/sec/util/SecConstants.class  
   creating: 8350262/files/sysman/jlib/emd_java.jar/oracle/sysman/eml/sec/rep/
  inflating: 8350262/files/sysman/jlib/emd_java.jar/oracle/sysman/eml/sec/rep/RepWalletUtil.class  
  inflating: 8350262/killDBConsole.pl  
  inflating: 8350262/README.txt      
   creating: 8350262/etc/
   creating: 8350262/etc/xml/
  inflating: 8350262/etc/xml/ShiphomeDirectoryStructure.xml  
  inflating: 8350262/etc/xml/GenericActions.xml  
   creating: 8350262/etc/config/
  inflating: 8350262/etc/config/inventory  
  inflating: 8350262/etc/config/actions  

[oracle@ocp ~]cd 8350262
[oracle@ocp 8350262]$ $ORACLE_HOME/OPatch/opatch apply     --Note：$ORACLE_HOME/OPatch/opatch路径
Invoking OPatch 10.2.0.4.2

Oracle Interim Patch Installer version 10.2.0.4.2
Copyright (c) 2007, Oracle Corporation.  All rights reserved.


Oracle Home       : /opt/oracle/app/10.2.0/db_1
Central Inventory : /opt/oracle/oraInventory
   from           : /etc/oraInst.loc
OPatch version    : 10.2.0.4.2
OUI version       : 10.2.0.4.0
OUI location      : /opt/oracle/app/10.2.0/db_1/oui
Log file location : /opt/oracle/app/10.2.0/db_1/cfgtoollogs/opatch/opatch2011-10-17_18-11-40PM.log

ApplySession applying interim patch '8350262' to OH '/opt/oracle/app/10.2.0/db_1'

Running prerequisite checks...

OPatch detected non-cluster Oracle Home from the inventory and will patch the local system only.

Backing up files and inventory (not for auto-rollback) for the Oracle Home
Backing up files affected by the patch '8350262' for restore. This might take a while...
Backing up files affected by the patch '8350262' for rollback. This might take a while...

Patching component oracle.sysman.agent.core, 10.2.0.4.0a...
Updating jar file "/opt/oracle/app/10.2.0/db_1/sysman/jlib/emCORE.jar" with "/sysman/jlib/emCORE.jar/oracle/sysman/eml/sec/fsc/FSWalletUtil.class"
Updating jar file "/opt/oracle/app/10.2.0/db_1/sysman/jlib/emCORE.jar" with "/sysman/jlib/emCORE.jar/oracle/sysman/eml/sec/rep/RepWalletUtil.class"
Updating jar file "/opt/oracle/app/10.2.0/db_1/sysman/jlib/emCORE.jar" with "/sysman/jlib/emCORE.jar/oracle/sysman/eml/sec/util/RootCert.class"
Updating jar file "/opt/oracle/app/10.2.0/db_1/sysman/jlib/emCORE.jar" with "/sysman/jlib/emCORE.jar/oracle/sysman/eml/sec/util/SecConstants.class"
Updating jar file "/opt/oracle/app/10.2.0/db_1/sysman/jlib/emd_java.jar" with "/sysman/jlib/emd_java.jar/oracle/sysman/eml/sec/fsc/FSWalletUtil.class"
Updating jar file "/opt/oracle/app/10.2.0/db_1/sysman/jlib/emd_java.jar" with "/sysman/jlib/emd_java.jar/oracle/sysman/eml/sec/rep/RepWalletUtil.class"
Updating jar file "/opt/oracle/app/10.2.0/db_1/sysman/jlib/emd_java.jar" with "/sysman/jlib/emd_java.jar/oracle/sysman/eml/sec/util/RootCert.class"
Updating jar file "/opt/oracle/app/10.2.0/db_1/sysman/jlib/emd_java.jar" with "/sysman/jlib/emd_java.jar/oracle/sysman/eml/sec/util/SecConstants.class"
ApplySession adding interim patch '8350262' to inventory

Verifying the update...
Inventory check OK: Patch ID 8350262 is registered in Oracle Home inventory with proper meta-data.
Files check OK: Files from Patch ID 8350262 are present in Oracle Home.

OPatch succeeded.

[oracle@ocp 8350262]$ ../opatch lsinventory  --Note检测是否安装成功
Invoking OPatch 10.2.0.4.2

Oracle Interim Patch Installer version 10.2.0.4.2
Copyright (c) 2007, Oracle Corporation.  All rights reserved.


Oracle Home       : /opt/oracle/app/10.2.0/db_1
Central Inventory : /opt/oracle/oraInventory
   from           : /etc/oraInst.loc
OPatch version    : 10.2.0.4.2
OUI version       : 10.2.0.4.0
OUI location      : /opt/oracle/app/10.2.0/db_1/oui
Log file location : /opt/oracle/app/10.2.0/db_1/cfgtoollogs/opatch/opatch2011-10-17_18-18-34PM.log

Lsinventory Output file location : /opt/oracle/app/10.2.0/db_1/cfgtoollogs/opatch/lsinv/lsinventory2011-10-17_18-18-34PM.txt

--------------------------------------------------------------------------------
Installed Top-level Products (2): 

Oracle Database 10g                                                  10.2.0.1.0
Oracle Database 10g Release 2 Patch Set 3                            10.2.0.4.0
There are 2 products installed in this Oracle Home.


Interim patches (1) :

Patch  8350262      : applied on Mon Oct 17 18:17:28 CST 2011
   Created on 14 Sep 2010, 04:59:44 hrs PST8PDT
   Bugs fixed:
     8350262



--------------------------------------------------------------------------------

OPatch succeeded.

p8350262_10204_Generic
p8350262_10205_Generic

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Oracle常见后台进程及其功能汇总

发表于 2011 年 10 月 16 日 由 惜分飞

今天参照oracle官方文档和metalink文档，对Oracle常见后台进程及其功能汇总进行了一次汇总
Oracle常见后台进程及其功能汇总
//www.xifenfei.com/wp-content/uploads/2011/10/Oracle_Process.pdf

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