查看ORACLE數據庫的版本以及補丁情況，可以通過opatch lsinventory命令來查看，Linux版本和Windows版本幾乎差不多（測試的兩台機器都沒有打補丁。呵呵！）：
先看一下Windows平台的設置：
首先轉到ORACLE_HOME目錄，然后切換到OPatch目錄：(如下所示)
E:\>cd E:\app\kerry\product\11.2.0\dbhome_1
E:\app\kerry\product\11.2.0\dbhome_1>cd OPatch
如果首先沒有設置ORACLE_HOME目錄，則會報如下錯誤:
E:\app\kerry\product\11.2.0\dbhome_1\OPatch>opatch lsinventory
Oracle Home is not set. OPatch cannot proceed!
OPatch succeeded.
Linux平台查看版本補丁
首先查看一下ORACLE_HOME目錄，如下所示：
[oracle@DB-Server ~]$ echo $ORACLE_HOME
/database/product/dbhome_1
[oracle@DB-Server ~]$
[oracle@DB-Server OPatch]$ ./opatch lsinventory
Invoking OPatch 10.2.0.1.0
Oracle interim Patch Installer version 10.2.0.1.0
Copyright (c) 2005, Oracle Corporation. All rights reserved..
Oracle Home : /database/product/dbhome_1
Central Inventory : /database/oraInventory
from : /database/product/dbhome_1/oraInst.loc
OPatch version : 10.2.0.1.0
OUI version : 10.2.0.1.0
OUI location : /database/product/dbhome_1/oui
Log file location : /database/product/dbhome_1/cfgtoollogs/opatch/opatch-2012_Jun_02_10-00-07-CST_Sat.log
Lsinventory Output file location : /database/product/dbhome_1/cfgtoollogs/opatch/lsinv/lsinventory-2012_Jun_02_10-00-07-CST_Sat.txt
--------------------------------------------------------------------------------
Installed Top-level Products (1):
Oracle Database 10g 10.2.0.1.0
There are 1 products installed in this Oracle Home.
There are no Interim patches installed in this Oracle Home.
--------------------------------------------------------------------------------
OPatch succeeded.