ORACLE 12c新特性のOEM

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[font=Optima, Verdana, Arial, sans-serif, Tahoma, Helvetica][size=13px]在Oracle 12c的版本中,引入了简化的EM版本,这一版本被称为:EM Database Express 12c。 Express版本的EM对之前的EM做出了大量的简化,使之更加轻量级(整个部署的空间需求在50M ~ 100M左右),更加适合用于轻量级的数据库监控和性能管理。
EM Express配置非常简单,底层需要XML DB的支持,在Oracle 12c中,XDB是强制安装的,所以在数据库安装完成之后,只需要确认基本的XDB配置,设置端口即可启用EM Express,以下配置8080端口作为EM Express的监听端口:[font=Optima, Verdana, Arial, sans-serif, Tahoma, Helvetica][size=13px]SQL> show parameter dispatchers
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
dispatchers string (PROTOCOL=TCP) (SERVICE=momoXDB)
SQL> exec DBMS_XDB_CONFIG.setHTTPPort(8080);

PL/SQL procedure successfully completed.

[oracle@enmodb12c db_2]$ lsnrctl status
LSNRCTL for Linux: Version 12.1.0.1.0 - Production on 26-JUN-2013 10:56:38
Copyright (c) 1991, 2013, Oracle. All rights reserved.

Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 12.1.0.1.0 - Production
Start Date 26-JUN-2013 10:23:48
Uptime 0 days 0 hr. 32 min. 49 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Log File /u01/app/oracle/diag/tnslsnr/enmodb12c/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=enmodb12c)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=enmodb12c)(PORT=8080))(Presentation=HTTP)(Session=RAW))
Services Summary...
Service "enmo" has 1 instance(s).
Instance "momo", status READY, has 1 handler(s) for this service...
Service "momo" has 1 instance(s).
Instance "momo", status READY, has 1 handler(s) for this service...
Service "momoXDB" has 1 instance(s).
Instance "momo", status READY, has 1 handler(s) for this service...
The command completed successfully

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