oracle em出错命令方式

emca -deconfig dbcontrol db

emca -repos drop

set ORACLE_HOSTNAME={localhost or hostname or ip}

emca -config dbcontrol db -repos create

当提示“SYSMAN already exists”错误，用sysdba权限执行一下sql：

drop user sysman cascade;

drop role MGMT_USER;

drop user MGMT_VIEW cascade;

drop public synonym MGMT_TARGET_BLACKOUTS;

drop public synonym SETEMVIEWUSERCONTEXT;

当提示“oracle.sysman.emcp.exception.EMConfigException: 启动 Database Control 时出错”时

执行wmic，查看process，确定java版本，