Oracle 更改服务名方法

转载：Oracle 更改服务名方法

1. 运行db的sqlplus：sqlplus sys/sys as sysdba （sys/sys为“用户名”/“密码”）
   或配置client的监听后运行Client的sqlplus

2. 查看当前服务名：SQL> show parameter service_name

3. 修改服务名：SQL> alter system set service_names='orcl' scope=both;

4. 修改listener.ora（加粗部分）：
   SID_LIST_LISTENER =
   (SID_LIST =
   (SID_DESC =
   (GLOBAL_DBNAME = ORCL)
   (ORACLE_HOME = D:\Oracle11g)
   (SID_NAME = ORCL)
   )
   (SID_DESC =
   (SID_NAME = PLSExtProc)
   (ORACLE_HOME = D:\Oracle11g)
   (PROGRAM = extproc)
   )
   )
   LISTENER =
   (DESCRIPTION_LIST =
   (DESCRIPTION =
   (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
   (ADDRESS = (PROTOCOL = TCP)(HOST = onest)(PORT = 1521))
   )
   )