ORA-00955: 名称已由现有对象使用

 


1，删除早期DBCONSOLE创建的用户：

drop role MGMT_USER;
drop user MGMT_VIEW cascade;
drop user sysman cascade;

2，删除早期DBCONSOLE创建的对象：
drop PUBLIC SYNONYM MGMT_TARGET_BLACKOUTS;
drop public synonym SETEMVIEWUSERCONTEXT;
drop public synonym MGMT_AVAILABILITY;
drop public synonym MGMT_CURRENT_AVAILABILITY;
drop public synonym MGMT_SEVERITY_OBJ

3，重新创建DBCONSOLE：

emca -config dbcontrol db -repos recreate

 

创建一个EM资料库
emca -repos create
重建一个EM资料库
emca -repos recreate

删除一个EM资料库
emca -repos drop
配置数据库的 Database Control
emca -config dbcontrol db
删除数据库的 Database Control配置
emca -deconfig dbcontrol db
重新配置db control的端口，默认端口在1158
emca -reconfig ports
emca -reconfig ports -dbcontrol_http_port 1158
emca -reconfig ports -agent_port 3940
先设置ORACLE_SID环境变量后,启动EM console服务  
emctl start dbconsole
先设置ORACLE_SID环境变量后,停止EM console服务
emctl stop dbconsole
先设置ORACLE_SID环境变量后,查看EM console服务的状态
emctl status dbconsole
配置dbconsole的步骤
emca -repos create
emca -config dbcontrol db
emctl start dbconsole
重新配置dbconsole的步骤
emca -repos drop
emca -repos create
emca -config dbcontrol db