单独创建数据库实例
数据库1 数据库2
ORCL LAW ------RDBMS（服务）
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安装数据库软件（DBMS）
单独再创建一个RDBMS--LAW
[root@oracle3 ~]# xhost +
access control disabled, clients can connect from any host --自动启动了xmanager passive
[root@oracle3 ~]# su - oracle
[oracle@oracle3 ~]$ export DISPLAY="10.1.1.250:0.0"
[oracle@oracle3 ~]$ export LANG=en_US
[oracle@oracle3 ~]$ dbca --注意：选择字符集为UTF8 不创建LAW的OEM
[oracle@oracle3 ~]$ lsnrctl
LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 05-JUN-2014 14:31:51
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Welcome to LSNRCTL, type "help" for information.
LSNRCTL> status
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 10.2.0.1.0 - Production
Start Date 05-JUN-2014 11:30:50
Uptime 0 days 3 hr. 1 min. 2 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/oracle/product/10.2.0/db_1/network/admin/listener.ora
Listener Log File /u01/oracle/product/10.2.0/db_1/network/log/listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=oracle3)(PORT=1521)))
Services Summary...
Service "LAW" has 1 instance(s). --监听的第一个实例LAW
Instance "LAW", status READY, has 1 handler(s) for this service...
Service "LAWXDB" has 1 instance(s).
Instance "LAW", status READY, has 1 handler(s) for this service...
Service "LAW_XPT" has 1 instance(s).
Instance "LAW", status READY, has 1 handler(s) for this service...
Service "ORCL" has 1 instance(s). --监听的第二个实例ORCL
Instance "ORCL", status READY, has 1 handler(s) for this service...
Service "ORCLXDB" has 1 instance(s).
Instance "ORCL", status READY, has 1 handler(s) for this service...
Service "ORCL_XPT" has 1 instance(s).
Instance "ORCL", status READY, has 1 handler(s) for this service...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
ORCL LAW（创建了不一定要在内存中存在，除非启动它）
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listener：1521
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---------Linux----port：1521---------
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外部连接
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手工配置LAW的OEM
0、临时修改环境变量
[oracle@oracle3 ~]$ export ORACLE_SID=LAW
1、首先要启动LAW实例
2、运行配置工具配置
[oracle@oracle3 ~]$ emca -config dbcontrol db -repos recreate
EMCA 开始于 2014-6-5 15:40:12
EM Configuration Assistant 10.2.0.1.0 正式版
版权所有 (c) 2003, 2005, Oracle。保留所有权利。
输入以下信息:
数据库 SID: LAW
监听程序端口号: 1521
SYS 用户的口令:
DBSNMP 用户的口令:
SYSMAN 用户的口令:
通知的电子邮件地址 (可选):
通知的发件 (SMTP) 服务器 (可选):
-----------------------------------------------------------------
已指定以下设置
数据库 ORACLE_HOME ................ /u01/oracle/product/10.2.0/db_1
数据库主机名 ................ oracle3
监听程序端口号 ................ 1521
数据库 SID ................ LAW
通知的电子邮件地址 ...............
通知的发件 (SMTP) 服务器 ...............
-----------------------------------------------------------------
是否继续? [yes(Y)/no(N)]: Y
2014-6-5 15:40:31 oracle.sysman.emcp.EMConfig perform
信息: 正在将此操作记录到 /u01/oracle/product/10.2.0/db_1/cfgtoollogs/emca/LAW/emca_2014-06-05_03-40-12-下午.log。
2014-6-5 15:40:32 oracle.sysman.emcp.EMReposConfig dropRepository
信息: 正在删除 EM 资料档案库 (此操作可能需要一段时间)...
2014-6-5 15:40:32 oracle.sysman.emcp.EMReposConfig invoke
信息: 已成功删除资料档案库
2014-6-5 15:40:32 oracle.sysman.emcp.EMReposConfig createRepository
信息: 正在创建 EM 资料档案库 (此操作可能需要一段时间)...
2014-6-5 15:41:59 oracle.sysman.emcp.EMReposConfig invoke
信息: 已成功创建资料档案库
2014-6-5 15:42:01 oracle.sysman.emcp.util.DBControlUtil startOMS
信息: 正在启动 Database Control (此操作可能需要一段时间)...
2014-6-5 15:43:43 oracle.sysman.emcp.EMDBPostConfig performConfiguration
信息: 已成功启动 Database Control
2014-6-5 15:43:43 oracle.sysman.emcp.EMDBPostConfig performConfiguration
信息: >>>>>>>>>>> Database Control URL 为 http://oracle3:5500/em <<<<<<<<<<<
已成功完成 Enterprise Manager 的配置
EMCA 结束于 2014-6-5 15:43:43
http://10.1.3.3:5500/em/console/aboutApplication
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删除一个数据库实例
[oracle@oracle3 ~]$ export ORACLE_SID=LAW
[oracle@oracle3 ~]$ dbca --删除实例LAW
原文地址：http://fengsonglin.blog.51cto.com/9860507/1615202
