Check patch level of Oracle RDBMS from OS

Most software only have a single patch process to update the software, however relational databases are a bit different.  You have both a binary set of files for the software and the internal configuration and objects within the database itself.   Thus, it is necessary to validate data both patch levels at the OS level and database level.   Mismatch patches at this level can cause significant errors during operations. 

Check Oracle Patch level at OS

To see the binary level patching of the Oracle software packages,  you have to use the opatch utility to see the internal entries in oraInventory directory.  Use the following opatch command to view your oraInventory. 



/code
opatch lsinventory

sun1{orcl}-~> opatch lsinventory
Oracle Interim Patch Installer version 12.2.0.1.23
Copyright (c) 2021, Oracle Corporation.  All rights reserved.


Oracle Home       : /oracle/product/12.2.0/db_home1
Central Inventory : /oracle/oraInventory
   from           : /oracle/product/12.2.0/db_home1/oraInst.loc
OPatch version    : 12.2.0.1.23
OUI version       : 12.2.0.1.4
Log file location : /oracle/product/12.2.0/db_home1/cfgtoollogs/opatch/opatch2021-08-18_08-31-56AM_1.log

Lsinventory Output file location : /oracle/product/12.2.0/db_home1/cfgtoollogs/opatch/lsinv/lsinventory2021-08-18_08-31-56AM.txt
--------------------------------------------------------------------------------
Local Machine Information::
Hostname: sun1.testdomain.com
ARU platform id: 23
ARU platform description:: Solaris Operating System (SPARC 64-bit)


Installed Top-level Products (1):

Oracle Database 12c                                                  12.2.0.1.0
There are 1 products installed in this Oracle Home.


Interim patches (3) :

Patch  32473172     : applied on Fri Jun 04 12:55:51 EDT 2021
Unique Patch ID:  24158925
Patch description:  "OJVM RELEASE UPDATE 12.2.0.1.210420 (32473172)"
   Created on 1 Apr 2021, 09:12:15 hrs UTC
   Bugs fixed:
     25811105, 25890046, 26023042, 26570134, 27000702, 27461740, 27952586
     27642235, 27539876, 28502098, 28915870, 29254623, 29774362, 30160625
     30534662, 30855101, 31306261, 26716835, 31668872, 29224710, 28394726
     24817447, 32165759, 31997805, 26451793, 32523206, 29415774

Patch  32692908     : applied on Fri Jun 04 12:50:09 EDT 2021
Unique Patch ID:  24229706
   Created on 13 May 2021, 11:26:43 hrs PST8PDT
   Bugs fixed:
     29839481, 31193511
   This patch overlays patches:
     32507738
   This patch needs patches:
     32507738
   as prerequisites

Patch  32507738     : applied on Fri Jun 04 12:46:30 EDT 2021
Unique Patch ID:  24169281
Patch description:  "Database Apr 2021 Release Update : 12.2.0.1.210420 (32507738)"
   Created on 9 Apr 2021, 05:33:05 hrs UTC
   Bugs fixed:
     7391838, 8480838, 8932139, 8975044, 12763598, 13554903, 14221306
     14690846, 15931756, 16002385, 16438495, 16727454, 16942578, 17027695
     17533661, 17947871, 17958365, 18308268, 18521691, 18594510, 18774543
     18878420, 18986501, 19072655, 19211433, 19285025, 19327292, 19526548
     19614243, 19647894