1.编辑listener.ora监听文件
# vi /oracle/10g/network/admin/listener.ora
2.修改如下内容，红色字体部分为新增内容：
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /oracle/10g)
(PROGRAM = extproc)
)
(SID_DESC = (GLOBAL_DBNAME = orcl10g) # SID (ORACLE_HOME = /oracle/10g) # oracle_home (SID_NAME = orcl10g) # SID )
)
