可以通过p后面的数字在mos上面很容易的查到该补丁包，从该版本的补丁包的readme.html 中。我们可以看到这样要求

2.1 OPatch Utility
You must use the OPatch utility version 11.2.0.3.6 or later to apply this patch. Oracle recommends that you use the latest released OPatch version for 11.2, which is available for download from My Oracle Support patch 6880880 by selecting the 11.2.0.0.0 release.

由于我们是用的系统盘直接装的，默认的版本是这个：

[oracle@storedb OPatch]$ ./opatch version
OPatch Version: 11.2.0.3.4

1.把Opatch的环境变量配置
export PATH=$ORACLE_HOME/bin:$ORACLE_HOME/OPatch:$PATH
2.查看数据库的版本
opatch version
[oracle@<span style="font-family: Arial, Helvetica, sans-serif;">storedb</span> OPatch]$ opatch version
OPatch Version: 11.2.0.3.4
OPatch succeeded.
opatch lsinventory
[oracle@kadora4 OPatch]$ opatch lsinventory
Oracle Interim Patch Installer version 11.2.0.3.4
Copyright (c) 2012, Oracle Corporation.  All rights reserved.
Oracle Home       : /opt/app/oracle/product/11.2.0/db_1
Central Inventory : /opt/oraInventory
   from           : /opt/app/oracle/product/11.2.0/db_1/oraInst.loc
OPatch version    : 11.2.0.3.4
OUI version       : 11.2.0.4.0
Log file location : /opt/app/oracle/product/11.2.0/db_1/cfgtoollogs/opatch/opatch2014-07-07_10-44-39AM_1.log
Lsinventory Output file location : /opt/app/oracle/product/11.2.0/db_1/cfgtoollogs/opatch/lsinv/lsinventory2014-07-07_10-44-39AM.txt
--------------------------------------------------------------------------------
Installed Top-level Products (1):
Oracle Database 11g                                                  11.2.0.4.0
There are 1 products installed in this Oracle Home.
There are no Interim patches installed in this Oracle Home.
--------------------------------------------------------------------------------
3.更新补丁工具包
cd $ORACLE_HOME/
mv OPatch OPath_bak
unzip p6880880_112000_LINUX.zip
cd OPatch
[oracle@racdb1 db_1]$ cd OPatch
[oracle@racdb1 OPatch]$ ls
crs  docs  emdpatch.pl  jlib  ocm  opatch  opatch.bat  opatchdiag  opatchdiag.bat  opatch.ini  opatch.pl  opatchprereqs  oplan  README.txt  version.txt
[oracle@racdb1 OPatch]$
[oracle@racdb1 OPatch]$ opatch version
OPatch Version: 11.2.0.3.6
OPatch succeeded.
4.检查你需要打的补丁是否与现有的补丁有冲突
unzip p18031668_112040_Linux-x86-64.zip
cd 18031668
[oracle@racdb1 18031668]$ opatch prereq CheckConflictAgainstOHWithDetail -ph ./
Oracle Interim Patch Installer version 11.2.0.3.6
Copyright (c) 2013, Oracle Corporation.  All rights reserved.
PREREQ session
Oracle Home       : /u01/app/oracle/product/11.2.0/db_1
Central Inventory : /u01/app/oraInventory
   from           : /u01/app/oracle/product/11.2.0/db_1/oraInst.loc
OPatch version    : 11.2.0.3.6
OUI version       : 11.2.0.4.0
Log file location : /u01/app/oracle/product/11.2.0/db_1/cfgtoollogs/opatch/opatch2014-07-09_01-59-50AM_1.log
Invoking prereq "checkconflictagainstohwithdetail"
Prereq "checkConflictAgainstOHWithDetail" passed.
OPatch succeeded.
5.关闭数据库并更新最新的补丁
sqlplus / as sysdba
shutdown immediate
cd 18031668
opatch apply
opatch apply
Oracle Interim Patch Installer version 11.2.0.3.6
Copyright (c) 2013, Oracle Corporation.  All rights reserved.
 
Oracle Home       : /u01/app/oracle/product/11.2/db_1
Central Inventory : /u01/app/oraInventory
   from           : /u01/app/oracle/product/11.2/db_1/oraInst.loc
OPatch version    : 11.2.0.3.6
OUI version       : 11.2.0.4.0
Log file location : /u01/app/oracle/product/11.2/db_1/cfgtoollogs/opatch/17478514_Apr_02_2014_15_38_28/apply2014-04-02_15-38-28PM_1.log
 
 
You have not provided an email address for notification of security issues.
Do you wish to remain uninformed of security issues ([Y]es, [N]o) [N]:  y
 
Please shutdown Oracle instances running out of this ORACLE_HOME on the local system.
(Oracle Home = '/u01/app/oracle/product/11.2/db_1')
 
Is the local system ready for patching? [y|n]
y
User Responded with: Y
Backing up files...
 
 
Patching component oracle.nlsrtl.rsf, 11.2.0.4.0...
 
Patching component oracle.xdk.rsf, 11.2.0.4.0...
 
Patching component oracle.rdbms.rman, 11.2.0.4.0...
 
OPatch found the word "warning" in the stderr of the make command.
Please look at this stderr. You can re-run this make command.
Stderr output:
ins_emagent.mk:113: warning: overriding commands for target `nmosudo'
ins_emagent.mk:52: warning: ignoring old commands for target `nmosudo'
/u01/app/oracle/product/11.2/db_1/sysman/lib/ins_emagent.mk:113: warning: overriding commands for target `nmosudo'
/u01/app/oracle/product/11.2/db_1/sysman/lib/ins_emagent.mk:52: warning: ignoring old commands for target `nmosudo'
 
Verifying the update...
Patch 17478514 successfully applied
OPatch Session completed with warnings.
Log file location: /u01/app/oracle/product/11.2/db_1/cfgtoollogs/opatch/17478514_Apr_02_2014_15_38_28/apply2014-04-02_15-38-28PM_1.log
 
OPatch completed with warnings.
6.查看补丁：
opatch lsinventory
oracle@racdb1 OPatch]$   opatch lsinventory
Oracle Interim Patch Installer version 11.2.0.3.6
Copyright (c) 2013, Oracle Corporation.  All rights reserved.
Oracle Home       : /u01/app/oracle/product/11.2.0/db_1
Central Inventory : /u01/app/oraInventory
   from           : /u01/app/oracle/product/11.2.0/db_1/oraInst.loc
OPatch version    : 11.2.0.3.6
OUI version       : 11.2.0.4.0
Log file location : /u01/app/oracle/product/11.2.0/db_1/cfgtoollogs/opatch/opatch2014-07-09_02-10-23AM_1.log
Lsinventory Output file location : /u01/app/oracle/product/11.2.0/db_1/cfgtoollogs/opatch/lsinv/lsinventory2014-07-09_02-10-23AM.txt
--------------------------------------------------------------------------------
Installed Top-level Products (1):
Oracle Database 11g                                                  11.2.0.4.0
There are 1 product(s) installed in this Oracle Home.
Interim patches (1) :
Patch  18031668     : applied on Wed Jul 09 00:16:43 EDT 2014
Unique Patch ID:  17255543
Patch description:  "Database Patch Set Update : 11.2.0.4.2 (18031668)"
   Created on 20 Feb 2014, 05:15:58 hrs PST8PDT
Sub-patch  17478514; "Database Patch Set Update : 11.2.0.4.1 (17478514)"
   Bugs fixed:
     17288409, 16399083, 17205719, 17811429, 10136473, 16472716, 17614227
     17050888, 17040764, 17865671, 17325413, 14010183, 17726838, 13364795
     17389192, 17612828, 17080436, 16613964, 17284817, 17441661, 17761775
     17721717, 16721594, 17390431, 18203837, 17551709, 17344412, 16043574
     17446237, 16863422, 18139690, 17071721, 17501491, 17610798, 17239687
     17752121, 17468141, 17602269, 18203835, 17375354, 17313525, 17811456
     16731148, 14133975, 18203838, 16956380, 17385178, 17235750, 13866822
     17394950, 17478514, 17027426, 12905058, 14338435, 16450169, 13944971
     18094246, 16929165, 16785708, 17265217, 17465741, 16220077, 16180763
     16069901, 17546973, 16285691, 17323222, 18180390, 17088068, 16875449
     17016369, 17443671, 16228604, 17811438, 17811447, 16837842, 18031668
     16912439, 17332800, 17393683, 17622427, 17545847, 17186905, 16943711
     16850630, 17082359, 17346671, 14852021, 17783588, 17437634, 16618694
     17341326, 17296856, 17546761, 17716305
--------------------------------------------------------------------------------
7.执行catbundle.sql将补丁信息反射到数据库中，使数据库知道你最后一次打了什么补丁或者回滚了哪些补丁：
SQL> @?/rdbms/admin/catbundle.sql psu apply
SQL> Rem
SQL>
SQL> SET TERMOUT on
SQL> SET ECHO off
PL/SQL procedure successfully completed.
PL/SQL procedure successfully completed.
PL/SQL procedure successfully completed.
1 row selected.
1 row selected.
Generating apply and rollback scripts...
Check the following file for errors:
/u01/app/oracle/cfgtoollogs/catbundle/catbundle_PSU_FTDB_GENERATE_2014Apr02_17_20_18.log
Apply script: /u01/app/oracle/product/11.2/db_1/rdbms/admin/catbundle_PSU_FTDB_APPLY.sql
Rollback script: /u01/app/oracle/product/11.2/db_1/rdbms/admin/catbundle_PSU_FTDB_ROLLBACK.sql
 
PL/SQL procedure successfully completed.
 
Executing script file...
 
1 row selected.
 
SQL> COLUMN spool_file NEW_VALUE spool_file NOPRINT
SQL> SELECT '/u01/app/oracle/cfgtoollogs/catbundle/' || 'catbundle_PSU_' || name || '_APPLY_' || TO_CHAR(SYSDATE, 'YYYYMonDD_hh24_mi_ss', 'NLS_DATE_LANGUAGE=''AMERICAN''') || '.log' AS spool_file FROM v$database;
 
1 row selected.
 
SQL> SPOOL &spool_file
SQL> exec dbms_registry.set_session_namespace('SERVER')
 
PL/SQL procedure successfully completed.
 
SQL> PROMPT Skipping Spatial because it is not installed or versions mismatch...
Skipping Spatial because it is not installed or versions mismatch...
SQL> ALTER SESSION SET current_schema = SYS;
 
Session altered.
 
SQL> PROMPT Updating registry...
Updating registry...
SQL> INSERT INTO registry$history
  2    (action_time, action,
  3     namespace, version, id,
  4     bundle_series, comments)
  5  VALUES
  6    (SYSTIMESTAMP, 'APPLY',
  7     SYS_CONTEXT('REGISTRY$CTX','NAMESPACE'),
  8     '11.2.0.4',
  9     1,
 10     'PSU',
 11     'PSU 11.2.0.4.1');
1 row created.
SQL> COMMIT;
Commit complete.
SQL> SPOOL off
SQL> SET echo off
Check the following log file for errors:

ORACLE PSU升级总结