ORACLE 11g从 11.2.0.1升级到11.2.0.4 详细实战教程

 1、准备安装

查看当前oracle版本，确定是比较旧的11.2.0.1

[oracle@hch_test_121_90 ~]$ rlwrap sqlplus / as sysdba 
SQL*Plus: Release 11.2.0.1.0 Production on Fri Mar 17 15:20:45 2017 
Copyright (c) 1982, 2009, Oracle. All rights reserved. 
Connected to: 
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production 
With the Partitioning, OLAP, Data Mining and Real Application Testing options 
SQL> exit 
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production 
With the Partitioning, OLAP, Data Mining and Real Application Testing options 
[oracle@hch_test_121_90 ~]$