oracle 10g 配置两个监听

环境 centos 5.4 + oracle 10g r2
已有实例 xxxio 和监听listener 端口1521
现又新建实例 xxxdb  监听名称listener02 端口 1522
实现 listener02 只加载实例 xxxdb
1.创建数据库 实例名xxxdb
2.netca 创建监听 listener02 端口1522
3.配置listener.ora 如下
# listener.ora Network Configuration File: /u01/app/oracle/product/10g//network/
admin/listener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = xxxio)
      (ORACLE_HOME = /u01/app/oracle/product/10g/)
      (PROGRAM = extproc)
    )
    (SID_DESC =
      (SID_NAME = +ASM)
      (ORACLE_HOME = /u01/app/oracle/product/10g/)
    )

    (SID_DESC =
      (SID_NAME = xxxdb)
      (ORACLE_HOME = /u01/app/oracle/product/10g/)
    )
  )

SID_LIST_LISTENER02 =
  (SID_LIST =

    (SID_DESC =
      (SID_NAME = xxxdb)
      (ORACLE_HOME = /u01/app/oracle/product/10g/)
    )
  )

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
      (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
    )

  )

LISTENER02 =
  (DESCRIPTION_LIST =

    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC2))
      (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1522))
    )
  )

说明 ： 自己在配置过程中也遇到了好多问题 ，最后通过查看资料和实际测试 证明上述的配置是正确的

1.首先用netca创建 listener02 后 会在配置文件listener.ora中 生成如下的信息 。这说明一个监听创建成功。
可以启动 、关闭  。但是没有加载实例。

LISTENER02 =
  (DESCRIPTION_LIST =

    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC2))
      (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1522))
    )
  )

2.在配置文件listener.ora 中加入如下信息 ，才能将实例xxxdb 加载到监听 listener02中 实现 各尽其职

SID_LIST_LISTENER02 =  --这的命名是SID_LIST_监听名
  (SID_LIST =

    (SID_DESC =
      (SID_NAME = xxxdb)
      (ORACLE_HOME = /u01/app/oracle/product/10g/)
    )
  )