11g 刪除 broker 設定值
1.設定dg_broker_start為false
1  | alter system set dg_broker_start = FALSE ;  | 
2.刪除dg_broker_config_file1/2
刪除dg_broker_config_file1/2的檔案
3.設定dg_broker_start為true
1  | alter system set dg_broker_start = TRUE Scope=both;  | 
4.重新配置broker
show configuration應該要會空才對