1. Install the 11.2.0.4 in a new Home Location using runInstaller
Ex:
Unzip the patch 13***
$/u01/app/oracle/11.2.0.4
2. Copy Pre upgrade Information gathering Script:
Log in to the system as the owner of the Oracle Database 11.2.0.4 Oracle home directory.
Copy the Pre-Upgrade Information Tool (utlu112i.sql) and utltzuv2.sql from the Oracle Database 11.2.0.4 $ORACLE_HOME/rdbms/admin
directory to a directory outside of the Oracle home, such as the temporary directory on your system.
$ORACLE_HOME/rdbms/admin/utlu112i.sql
3. Execute Pre Upgrade Script:
Should be change to the directory where utlu112i.sql had been copied in the previous step. Start SQL*Plus and connect to the database instance as a user with SYSDBA privileges. Then run and spool the utlu112i.sql file. Please note that the database should be started using the Source Oracle Home.
$ sqlplus '/ as sysdba'
SQL> spool upgrade_info.log
SQL> @utlu112i.sql
SQL> spool off
SQL>
Check the spool file and examine the output of the upgrade information tool.
3. Check for the integrity of the source database:
Check for the integrity of the source database prior to starting the upgrade by downloading and running dbupgdiag.sql script from below My Oracle Support article
Note 556610.1 Script to
Collect DB Upgrade/Migrate Diagnostic Information (dbupgdiag.sql) (Avoid this step if don’t have support access)
If the dbupgdiag.sql script reports any invalid objects, run $ORACLE_HOME/rdbms/admin/utlrp.sql (multiple times) to validate the invalid objects in the database, until there is no change in thenumber of invalid objects.
$ cd $ORACLE_HOME/rdbms/admin
$ sqlplus "/ as sysdba"
SQL> @utlrp.sql
After validating the invalid objects, re-run dbupgdiag.sql in the database once again and make sure that everything is fine.
4. Check that National Characterset:
Check that National Characterset (NLS_NCHAR_CHARACTERSET) is UTF8 and AL16UTF16.
select value from NLS_DATABASE_PARAMETERS where parameter = 'NLS_NCHAR_CHARACTERSET';
If this is UTF8 or AL16UTF16 then no action is needed.
If is not UTF8 or AL16UTF16 then refer the following article
5. Optimizer Statistics:
When upgrading to Oracle Database 11g Release 2 (11.2), optimizer statistics are collected for dictionary tables that lack statistics. This statistics collection can be time consuming for databases with a large number of dictionary tables, but statistics gathering only occurs for those tables that lack statistics or are significantly changed during the upgrade
$ sqlplus "/as sysdba"
SQL> EXEC DBMS_STATS.GATHER_DICTIONARY_STATS;
6. Ensure that no files need media recovery:
Sql> SELECT * FROM v$recover_file;
7. Stop the listener for the database:
Make pfile from spfile;
$ lsnrctl stop
8. Shutdown the Database:
Shutdown the database.
$ sqlplus "/as sysdba"
SQL> shutdown immediate;
9. Back Up the Database:
1- Perform Cold Backup
(or)
2- Take a backup using RMAN
Connect to RMAN:
rman "target / nocatalog"
RUN
{
ALLOCATE CHANNEL chan_name TYPE DISK;
BACKUP DATABASE FORMAT '%U' TAG before_upgrade;
BACKUP CURRENT CONTROLFILE TO '';
}
10. Backup and change pfile:
Make a backup of the init.ora file.
Comment out obsolete parameters
* The DIAGNOSTIC_DEST initialization parameter replaces the USER_DUMP_DEST, BACKGROUND_DUMP_DEST.
Note: Once the Parameter file is modified as per your requirement, copy the file to $ORACLE_HOME/dbs (11g Oracle Home )
11. Set Environment Variables:
If your operating system is UNIX then complete this step, else skip to next Step.
1. Make sure the following environment variables point to the Oracle database software 11g Release directories:
- ORACLE_BASE
- ORACLE_HOME
- PATH
$ export ORACLE_HOME=
$ export PATH=$ORACLE_HOME/bin:$PATH
$ export ORACLE_BASE=
Note : If ORACLE_BASE is not known, after setting Path towards 11g Oracle Home, execute 'orabase', which will point the location of base.
$ orabase
/uo1/app/oracle
2. Update the oratab entry, to set the new ORACLE_HOME pointing towards ORCL and disable automatic startup
Sample /etc/oratab
#orcl:/opt/oracle/product/10.2/db_1:N
orcl:/opt/oracle/product/11.2/db_1:N
Note : After /etc/oratab is updated to have sid and Oracle Home (11.2), you can execute oraenv (/usr/local/bin/oraenv) and set the environment. The input has to be the sid which is entered in /etc/oratab against 11g home.
for Instance,
[oracle@localhost ~]$ . oraenv
ORACLE_SID = [orcl] ? orcl
The Oracle base for ORACLE_HOME=/opt/oracle/product/11.2/db_1 is /u01/app/oracle
[oracle@localhost ~]$
12. Upgrade Database:
At the operating system prompt, change to the $ORACLE_HOME/rdbms/admin directory of 11gR2 Oracle Home.
$ cd $ORACLE_HOME/rdbms/admin
$ sqlplus "/ as sysdba"
SQL> startup UPGRADE
Set the system to spool results to a log file for later verification after the upgrade is completed and start the upgrade script.
SQL> set echo on
SQL> SPOOL upgrade.log
SQL> @catupgrd.sql
SQL> spool off
These measures are an important final step to ensure the integrity and consistency of the newly upgraded Oracle Database software. Also, if you encountered a message listing obsolete initialization parameters when you started the database for upgrade, then remove the obsolete initialization parameters from the parameter file before restarting. If necessary, convert the SPFILE to a PFILE so you can edit the file to delete parameters.
13. Post Upgrade:
Start the database and run the Post-Upgrade Status Tool $ORACLE_HOME/rdbms/admin/utlu112s.sql which provides a summary of the upgrade at the end of the spool log. It displays the status of the database components in the upgraded database and the time required to complete each component upgrade. Any errors that occur during the upgrade are listed with each component and must be addressed
$ sqlplus "/as sysdba"
SQL> STARTUP
SQL> @utlu112s.sql
14. Recompile Invalid Objects:
This script can be run concurrently with utlrp.sql. Run utlrp.sql to recompile any remaining stored PL/SQL and Java code in another session.
SQL> @utlrp.sql
15. Check for the integrity of the source database:
Check for the integrity of the upgraded database by running dbupgdiag.sql script from below Metalink article
Note 556610.1 Script to Collect DB Upgrade/Migrate Diagnostic Information (dbupgdiag.sql)
If the dbupgdiag.sql script reports any invalid objects, run $ORACLE_HOME/rdbms/admin/utlrp.sql (multiple times) to validate the invalid objects in the database, until there is no change in thenumber of invalid objects.
After validating the invalid objects, re-run dbupgdiag.sql in the upgraded database once again and make sure that everything is fine.
16. Configure and Start Listener.ora :
Modify the listener.ora file:
For the upgraded instance(s) modify the ORACLE_HOME parameter to point to the new ORACLE_HOME. Start the listener :
lsnrctl start
17. Crosscheck Environment Variables:
Set Environment Variables
1. Make sure the following environment variables point to the Oracle 11g Release directories:
- ORACLE_BASE
- ORACLE_HOME
- PATH
Also check that your oratab file and any client scripts that set the value of ORACLE_HOME point to the Oracle database software11g Release 2 (11.2) home.
Note : If you are upgrading a cluster database, then perform these checks on all nodes in which this cluster database has instances configured.
2. Modify /etc/oratab entry to use automatic startup
SID:ORACLE_HOME:Y
For Instance,
orcl:/opt/oracle/product/11.2/db_1:Y
18. Spfile from Pfile:
Edit init.ora:
- If you changed the CLUSTER_DATABASE parameter prior the upgrade set it back to TRUE
- Migrate your initialization parameter file to a server parameter file.
Create a server parameter file with a initialization parameter file
SQL> create spfile from pfile;
This will create a spfile as a copy of the init.ora file located in $ORACLE_HOME/dbs (UNIX) & %ORACLE_HOME%\database (Windows).
19. Start the Database with spfile:
Shutdown the database:
Sql> shutdown immediate
Now start the database it will user spfile
Sql> startup
Check the Alert log file for any Error.
Database is ready to use now with Database Software Oracle 11g.
20. Validate the database components as below.
23:07:25 SQL> select name,
open_mode from v$database;
NAME
OPEN_MODE
---------
--------------------------------------------------------------------------------
TEST
READ WRITE
Oracle Database 11.2
Post-Upgrade Status
Tool 07-02-2015
22:46:05
23:02:08 SQL> /
COMP_NAME
VERSION
STATUS
----------------------------------------
------------------------------ --------------------------------------------
Oracle Enterprise
Manager
11.2.0.4.0
VALID
OLAP
Catalog
11.2.0.4.0
VALID
Spatial
11.2.0.4.0
VALID
Oracle
Multimedia
11.2.0.4.0
VALID
Oracle XML
Database
11.2.0.4.0
VALID
Oracle
Text
11.2.0.4.0
VALID
Oracle Expression
Filter
11.2.0.4.0
VALID
Oracle Rules
Manager
11.2.0.4.0
VALID
Oracle Workspace
Manager
11.2.0.4.0
VALID
Oracle Database Catalog
Views
11.2.0.4.0
VALID
Oracle Database Packages and
Types
11.2.0.4.0
VALID
JServer JAVA Virtual
Machine
11.2.0.4.0
VALID
Oracle
XDK
11.2.0.4.0
VALID
Oracle Database Java
Packages
11.2.0.4.0
VALID
OLAP Analytic
Workspace
11.2.0.4.0
VALID
Oracle OLAP
API
11.2.0.4.0
VALID
Oracle Real Application Clusters
11.2.0.4.0
INVALID
Total Upgrade Time: 02:03:31
23:07:12 SQL> SELECT
OBJECT_TYPE, COUNT(*) FROM DBA_OBJECTS WHERE STATUS='INVALID' GROUP by
object_type;
OBJECT_TYPE
COUNT(*)
----------------------------------------------------------------------------
--------
VIEW
2
TRIGGER
1
SYNONYM
1
PACKAGE
BODY
6
