One of the best feature I came across recently. Oracle SQL*Plus is now support command line history similar to UNIX “history” command. This feature is available from Oracle 12.2.
Sample example is given below:
You can refer below link for more details:
Hope u will find this post very useful. 🙂
Cheers
Regards,
Adityanath
Dear Connections,
I was chatting to one of my dear friend yesterday during Sangam19 and he turned to me and asked “Why should people attend any AIOUG events”. It made me pause to think for a moment. Any type of such events is going to take up your time and will usually cost a decent amount of money. In addition, you’re taking time away from work & its not for vacation.
This post is to share my personal top reasons as to why people should attend AIOUG events:
Expand your professional network:
These events provide great opportunity to network with like minded people and industry peers.It is always helpful to have a healthy professional network. These events bring together people from all different geographical areas under single roof. Also this helps you meeting with people in your field that you haven’t connected in a while.
Expand your knowledge:
No matter how experienced you are at your field, everyone can learn. These is the best opportunity to hear from all Industry experts in person. You will meet all Oracle Gurus wherein they will share their experiences, their learning on the latest technologies. Also you can get guidance from them, also you can clear your doubts.
Learn beyond your skills:
When you are working for the same company for the years, your work & knowledge can become monotonous. Most of the times due to busy work schedule, its very difficult keep yourself up with the technology changes and advancements. These events can help you to know about newest technologies in the market also you can plan your careers accordingly.
To present yourself:
These events are the best opportunities wherein you can market yourself, share your ideas, knowledge. Here you can meet someone who can influence your professional career dramatically. You can develop a reputation as an expert to your peers.
Get certified:
All AIOUG events, provide your considerable discounts on all Oracle certifications. Especially in during Sangam19 Test Fest, people completed their certifications almost in free of cost.
Have Fun:
Last but of course not the least is the fun part. These events are fully filled with fun activities. These events can be a much needed break from your day to day life.
I am happy share some of the best pics from Sangam19:
Hope u will find this post very useful. 🙂
Cheers
Regards,
Adityanath
Hello Readers,
Few days ago, I was installing OEM agent version 13.3.0.0.0 on my DEV box with OS AIX version 7.2. I was using silent method using agentDeploy.sh.
Previously I had installed it successfully on multiple machines without any issues but this one failed with below error:
java.io.IOException: OUI-10039:Unable to access the inventory /u01/app/oraInventory on this system. Please ensure you have the proper permissions to read/write/search the inventory.
I tried to see if there are any permissions issue on folder /u01/app/oraInventory, I found mentioned directory was not present. So this error is expected one. But why Oracle is searching inventory at incorrect location???
When I dug into associated log file, I found more details about these errors.
2019-10-07 12:20:48,465 WARNING [34] oracle.sysman.oii.oiip.oiipg.OiipgPropertyLoader - The inventory pointer location /var/opt/oracle/oraInst.loc is either not readable or does not exist 2019-10-07 12:20:48,475 INFO [34] oracle.sysman.nextgen.utils.NextGenInventoryUtil - Setting default inventory location to: '/u01/app/oraInventory' 2019-10-07 12:20:48,475 WARNING [34] oracle.sysman.oii.oiip.oiipg.OiipgPropertyLoader - The inventory pointer location /var/opt/oracle/oraInst.loc is either not readable or does not exist 2019-10-07 12:20:48,475 WARNING [34] oracle.sysman.oii.oiip.oiipg.OiipgPropertyLoader - The inventory pointer location /var/opt/oracle/oraInst.loc is either not readable or does not exist 2019-10-07 12:20:48,477 SEVERE [34] oracle.sysman.oii.oiii.OiiiInstallAreaControl - OUI-10039:Unable to access the inventory /u01/app/oraInventory on this system. Please ensure you have the proper permissions to read/write/search the inventory. 2019-10-07 12:20:48,477 SEVERE [34] oracle.sysman.nextgen.impl.NextGenInstallerImpl - java.io.IOException: OUI-10039:Unable to access the inventory /u01/app/oraInventory on this system. Please ensure you have the proper permissions to read/write/search the inventory.
So basically, Oracle tries to check oraInst.loc under folder /var/opt/oracle & if it doesn’t find any, then it sets default inventory location to ‘/u01/app/oraInventory’.
I feel, This is somewhat agent software BUG, as loaction of oraInst.loc in AIX is ‘/etc’ not ‘/var/opt/oracle’.
Now there are two questions. First one, how to resolve this & second one, why my other installations went successful.
Reason behind other installation to be successful was Oracle indeed find oraInventory at its default location. So whenever oraInventory is located at ‘/u01/app/oraInventory’, you wont face this issue.
Now how to resolve this. You can always create softlink oraInst.loc to “/var/opt/oracle”.
Steps are given below:
Login using root: 1. mkdir -p /var/opt/oracle/ 2. cd /var/opt/oracle/ 3. ln -s /etc/oraInst.loc oraInst.loc 4. ls -lrt oraInst.loc
Once you perform above steps, you will be install OEM agent successfully.
Hope u will find this post very useful. 🙂
Cheers
Regards,
Adityanath
Recently I was doing fresh Grid Infrastructure(GI) 12.2 install on one of our UAT boxes, wherein I was facing strange issue.
Both “root.sh” & “./roothas.sh -postpatch” exiting with below error/warning:
CLSRSC-400: A system reboot is required to continue installing.
test-server01:/u01/app/12.2.0.1/grid/bin # cd $ORACLE_HOME/crs/install test-server01:/u01/app/12.2.0.1/grid/crs/install # ./roothas.sh -postpatch Using configuration parameter file: /u01/app/12.2.0.1/grid/crs/install/crsconfig_params The log of current session can be found at: /u01/app/crsdata/test-server01/crsconfig/hapatch_2019-05-27_02-22-25PM.log 2019/05/27 14:22:30 CLSRSC-329: Replacing Clusterware entries in file '/etc/inittab' 2019/05/27 14:23:18 CLSRSC-400: A system reboot is required to continue installing.
A simple instruction given by above warning was to reboot machine & retry. I did ask server admin to reboot machine but subsequent rerun of command failed with the same error.
test-server01:/u01/app/12.2.0.1/grid/crs/install # ./roothas.sh -postpatch Using configuration parameter file: /u01/app/12.2.0.1/grid/crs/install/crsconfig_params The log of current session can be found at: /u01/app/crsdata/test-server01/crsconfig/hapatch_2019-05-27_02-37-02PM.log 2019/05/27 14:37:07 CLSRSC-329: Replacing Clusterware entries in file '/etc/inittab' 2019/05/27 14:37:52 CLSRSC-400: A system reboot is required to continue installing.
I tried checking associated log files to get more details: /u01/app/crsdata/test-server01/crsconfig/hapatch_2019-05-27_02-37-02PM.log
> ACFS-9428: Failed to load ADVM/ACFS drivers. A system reboot is recommended. > ACFS-9310: ADVM/ACFS installation failed. > ACFS-9178: Return code = USM_REBOOT_RECOMMENDED 2019-05-27 14:37:41: ACFS drivers cannot be installed, and reboot may resolve this 2019-05-27 14:37:52: Command output: > CLSRSC-400: A system reboot is required to continue installing. >End Command output 2019-05-27 14:37:52: CLSRSC-400: A system reboot is required to continue installing.
So this was definitely due to issue with ACFS drivers.
I found below MOS documents related to my issues but nothing was exactly matching with my situation or operating system.
In our environment, we don’t use ACFS file system, so it was not the real problem in my case & we can always get ACFS drivers explicity if we need it in the future.
After reading all the logs I found /u01/app/12.2.0.1/grid/lib/acfstoolsdriver.sh is being called for ACFS driver installation.
I changed following code from
# Now run command with all arguments!
exec ${RUNTHIS} $@
to
# Now run command with all arguments!
#exec ${RUNTHIS} $@
exit 0
After changing above code, “./roothas.sh -postpatch” completed without errors/warning & I was able to complete GI installation successfully.
Note: This workaround is only applicable when ACFS is not being used in the environment so it can be implemented with the forewarning that there is implied risk which one must accept 😉
Hope u will find this post very useful.
Cheers
Regards,
Adityanath
Yesterday, I was busy upgrading my UAT database from 12.1.0.2 to 12.2.0.1. As a prerequisite when I ran preupgrade.jar into 12.1 RDBMS home it gave me below warning:
-- CHECK/FIXUP name: pending_dst_session
--
-- The call to run_fixup below will test whether
-- the following issue originally identified by
-- the preupgrade tool is still present
-- and if so, it will attempt to perform the action
-- necessary to resolve it.
--
-- ORIGINAL PREUPGRADE ISSUE:
-- + Complete any pending DST update operation before starting the database
-- upgrade.
--
-- There is an unfinished DST update operation in the database. It's
-- current state is: DATAPUMP(1)
--
-- There must not be any Daylight Savings Time (DST) update operations
-- pending in the database before starting the upgrade process.
-- Refer to My Oracle Support Note 1509653.1 for more information.
--
fixup_result := dbms_preup.run_fixup('pending_dst_session');
I tried querying DATABASE_PROPERTIES to get current DST_UPGRADE_STATE output, it was shown as below:
SQL> SELECT PROPERTY_NAME, SUBSTR(property_value, 1, 30) value FROM DATABASE_PROPERTIES WHERE PROPERTY_NAME LIKE 'DST_%' ORDER BY PROPERTY_NAME; PROPERTY_NAME VALUE -------------------------------------------------------------------------------------------------------------------------------- --------- DST_PRIMARY_TT_VERSION 18 DST_SECONDARY_TT_VERSION 14 DST_UPGRADE_STATE DATAPUMP(1)
I followed below MOS notes to resolve the issues, but all ended without any luck.
Updating the RDBMS DST version in 12c Release 1 (12.1.0.1 and up) using DBMS_DST (Doc ID 1509653.1)
How To Cleanup Orphaned DataPump Jobs In DBA_DATAPUMP_JOBS ? (Doc ID 336014.1)
Then I thought of ignoring this error & proceeded with DB upgrade. DB was successfully upgraded. But I once again stuck during step of DST upgrade from 18 to 26.
It was not allowing me to upgrade DST version from 18 to 26 as DST_UPGRADE_STATE was not NONE.
Then I googled it & found below steps to resolve it:
1. ALTER SESSION SET EVENTS ‘30090 TRACE NAME CONTEXT FOREVER, LEVEL 32’;
2. exec dbms_dst.unload_secondary;
3. ALTER SESSION SET EVENTS ‘30090 TRACE NAME CONTEXT FOREVER, OFF’;
I did check DST_UPGRADE_STATE post implementing it.
SQL> SELECT PROPERTY_NAME, SUBSTR(property_value, 1, 30) value FROM DATABASE_PROPERTIES WHERE PROPERTY_NAME LIKE 'DST_%' ORDER BY PROPERTY_NAME; PROPERTY_NAME VALUE -------------------------------------------------------------------------------------------------------------------------------- --------- DST_PRIMARY_TT_VERSION 18 DST_SECONDARY_TT_VERSION 14 DST_UPGRADE_STATE NONE
Now my database was ready for DST upgrade as DST_UPGRADE_STATE is NONE. 🙂
Hope u will find this post very useful.
Cheers
Regards,
Adityanath
Recently I was busy upgrading our DEV database from 12.1 to 12.2 & found JServer JAVA Virtual Machine registry component was in INVALID state.
COMP_NAME COMP_ID VERSION STATUS
----------------------------------- ------------------------------ ------------------------------ -----------
Oracle Application Express APEX 4.2.5.00.08 VALID
OWB OWB 11.2.0.3.0 VALID
OLAP Catalog AMD 11.2.0.4.0 OPTION OFF
Spatial SDO 12.1.0.2.0 VALID
Oracle Multimedia ORDIM 12.1.0.2.0 VALID
Oracle XML Database XDB 12.1.0.2.0 VALID
Oracle Text CONTEXT 12.1.0.2.0 VALID
Oracle Workspace Manager OWM 12.1.0.2.0 VALID
Oracle Database Catalog Views CATALOG 12.1.0.2.0 VALID
Oracle Database Packages and Types CATPROC 12.1.0.2.0 VALID
JServer JAVA Virtual Machine JAVAVM 12.1.0.2.0 INVALID ====> Issue
Oracle XDK XML 12.1.0.2.0 VALID
Oracle Database Java Packages CATJAVA 12.1.0.2.0 VALID
OLAP Analytic Workspace APS 12.1.0.2.0 VALID
Oracle OLAP API XOQ 12.1.0.2.0 VALID
Oracle Real Application Clusters RAC 12.1.0.2.0 OPTION OFF
As a prerequisite of upgrade, I had to rectify this before attempting upgrade.
As a first step, I tried running UTLRP.sql, but still component was in INVALID state.
I even checked, status of all objects in the database with object_type like JAVA%.
SYS@TESTDB:TESTDB> select owner, status, count(*) from all_objects where object_type like '%JAVA%' group by owner, status; OWNER STATUS COUNT(*) -------------------------------------------------------------------------------------------------------------------------------- ------- ---------- SYS VALID 29238 MDSYS VALID 650 ORDSYS VALID 2589
So now only option, I had left is to reinstall JAVA package inside database.
PFB steps for the same:
After applying above steps, JServer JAVA Virtual Machine became VALID. 🙂
COMP_NAME COMP_ID VERSION STATUS
----------------------------------- ------------------------------ ------------------------------ -----------
Oracle Application Express APEX 4.2.5.00.08 VALID
OWB OWB 11.2.0.3.0 VALID
OLAP Catalog AMD 11.2.0.4.0 OPTION OFF
Spatial SDO 12.1.0.2.0 VALID
Oracle Multimedia ORDIM 12.1.0.2.0 VALID
Oracle XML Database XDB 12.1.0.2.0 VALID
Oracle Text CONTEXT 12.1.0.2.0 VALID
Oracle Workspace Manager OWM 12.1.0.2.0 VALID
Oracle Database Catalog Views CATALOG 12.1.0.2.0 VALID
Oracle Database Packages and Types CATPROC 12.1.0.2.0 VALID
JServer JAVA Virtual Machine JAVAVM 12.1.0.2.0 VALID ====> Fixed
Oracle XDK XML 12.1.0.2.0 VALID
Oracle Database Java Packages CATJAVA 12.1.0.2.0 VALID
OLAP Analytic Workspace APS 12.1.0.2.0 VALID
Oracle OLAP API XOQ 12.1.0.2.0 VALID
Oracle Real Application Clusters RAC 12.1.0.2.0 OPTION OFF
Hope u will find this post very useful 🙂
Cheers
Regards,
Adityanath
Few days ago I observed, all of a sudden, one of the application related cron job started failing with following error.
ORA-06598: insufficient INHERIT PRIVILEGES privilege
This job was intended to drop temporary tables in application schema. We had written a shell script in which SYS user executes procedure owned by application schema.
Only thing that was changed at DB end, that DB was upgraded from 11g to 12c.
After investigating further on the error, I found this was due to a new 12c security feature.
Before Oracle Database 12c, a PL/SQL code/pacakge/procedure always ran with the privileges of its invoker. If its invoker had higher privileges than its owner, then the code might perform operations unintended by, or forbidden to, its owner. Here we can see security gap.
For example, User A creates a new package and we execute it from users with higher privileges, like SYS. Now user A knows that SYS uses this package regularly, so user A could replace the contents of this package with some malacious code any time and do anything in the database, knowing the code will be ran by SYS sooner or later.
In 12c this behavior can be controlled using INHERITANCE PRIVILEGES.
See following link for more details.
INHERIT PRIVILEGES and INHERIT ANY PRIVILEGES Privileges
As of Oracle Database 12c, a PL/SQL code/pacakge/procedure can run with the privileges of its invoker only if its owner has either the INHERIT PRIVILEGES privilege on the invoker or the INHERIT ANY PRIVILEGES privilege.
I was able to resolve the issue after issuing below command:
SQL> grant inherit privileges on user sys to <application schema>; Grant succeeded.
Hope so u will find this post very useful 🙂
Cheers
Regards,
Adityanath
