Oracle 11.2.0.4升级到12.2.0.1

操作系统版本：

[[email protected] ~]$ cat /etc/redhat-release

CentOS Linux release 7.2.1511 (Core)

 

数据库版本：

SQL> select * from v$version;

BANNER

--------------------------------------------------------------------------------

Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production

PL/SQL Release 11.2.0.4.0 - Production

CORE 11.2.0.4.0 Production

TNS for Linux: Version 11.2.0.4.0 - Production

NLSRTL Version 11.2.0.4.0 – Production

 

安装12cR2：

[[email protected] ~]$ ll linuxx64_12201_database.zip

-rw-r--r-- 1 oracle oinstall 3453696911 Sep 6 09:10 linuxx64_12201_database.zip

[[email protected] ~]$ unzip linuxx64_12201_database.zip

[[email protected] ~]$ export DISPLAY=192.168.17.100:0.0

[[email protected] ~]$ cd database/

[[email protected] database]$ ./runInstaller

执行脚本：

[[email protected] ~]# /u01/app/oracle/product/12.2.0/dbhome_1/root.sh

 

安装完成后将11g数据库信息写入/etc/oratab：

[[email protected] admin]$ tail -1 /etc/oratab

jhsitgg1:/u01/app/oracle/product/11.2.0/dbhome_1:Y

 

在12cR2的主目录下启动dbua：

[[email protected] database]$ cd /u01/app/oracle/product/12.2.0/dbhome_1/bin/

[[email protected] bin]$ ./dbua

验证：

升级完成后/etc/oratab已被修改为12cR2的主目录：

[[email protected] bin]$ tail -1 /etc/oratab

orcl:/u01/app/oracle/product/12.2.0/dbhome_1:N

 

手动修改环境变量：

[[email protected] ~]$ env | grep ORACLE

ORACLE_SID=orcl

ORACLE_BASE=/u01/app/oracle

ORACLE_HOME=/u01/app/oracle/product/12.2.0/dbhome_1

 

查看数据库版本已经升级：

SQL> select banner from v$version;

BANNER

--------------------------------------------------------------------------------

Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 - 64bit Production

PL/SQL Release 12.2.0.1.0 - Production

CORE 12.2.0.1.0 Production

TNS for Linux: Version 12.2.0.1.0 - Production

NLSRTL Version 12.2.0.1.0 - Production

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