1．查看是否安装组件
col comp_name for a40
select comp_name,version,status from dba_registry;
COMP_NAME VERSION STATUS
---------------------- --------------------------- -------------------------------
OWB 11.2.0.4.0 VALID
Oracle Application Express 3.2.1.00.12 VALID
Oracle Enterprise Manager 11.2.0.4.0 VALID
OLAP Catalog 11.2.0.4.0 VALID
Spatial 11.2.0.4.0 VALID
Oracle Multimedia 11.2.0.4.0 VALID
Oracle XML Database 11.2.0.4.0 VALID
Oracle Text 11.2.0.4.0 VALID
Oracle Expression Filter 11.2.0.4.0 VALID
Oracle Rules Manager 11.2.0.4.0 VALID
Oracle Workspace Manager 11.2.0.4.0 VALID
COMP_NAME VERSION STATUS
-------------------- -------------------- --------------------------------
Oracle Database Catalog Views 11.2.0.4.0 VALID
Oracle Database Packages and Types 11.2.0.4.0 VALID
JServer JAVA Virtual Machine 11.2.0.4.0 VALID
Oracle XDK 11.2.0.4.0 VALID
Oracle Database Java Packages 11.2.0.4.0 VALID
OLAP Analytic Workspace 11.2.0.4.0 VALID
Oracle OLAP API 11.2.0.4.0 VALID
Oracle Real Application Clusters 11.2.0.4.0 VALID
2．启动dbconsole
<roidb2:orcl2:/home/oracle>$emctl status dbconsole
Environment variable ORACLE_UNQNAME not defined. Please set ORACLE_UNQNAME to database unique name.
<roidb2:orcl2:/home/oracle>$export ORACLE_UNQNAME=orcl
<roidb2:orcl2:/home/oracle>$emctl status dbconsole
Oracle Enterprise Manager 11g Database Control Release 11.2.0.4.0
Copyright (c) 1996,2013 Oracle Corporation. All rights reserved.
https://roidb1:1158/em/console/aboutApplication
EM Daemon is not running.
------------------------------------------------------------------
Logs are generated in directory /u01/app/oracle/product/11.2.0/dbhome_1/roidb2_orcl/sysman/log
<roidb2:orcl2:/home/oracle>$emctl start dbconsole
Oracle Enterprise Manager 11g Database Control Release 11.2.0.4.0
Copyright (c) 1996,2013 Oracle Corporation. All rights reserved.
https://roidb1:1158/em/console/aboutApplication
Starting Oracle Enterprise Manager 11g Database Control ..... started.
------------------------------------------------------------------
Logs are generated in directory /u01/app/oracle/product/11.2.0/dbhome_1/roidb2_orcl/sysman/log
<roidb2:orcl2:/home/oracle>$emctl status dbconsole
Oracle Enterprise Manager 11g Database Control Release 11.2.0.4.0
Copyright (c) 1996,2013 Oracle Corporation. All rights reserved.
https://roidb1:1158/em/console/aboutApplication
EM Daemon is running.
------------------------------------------------------------------
Logs are generated in directory /u01/app/oracle/product/11.2.0/dbhome_1/roidb2_orcl/sysman/log
3．登陆控制台
