oracle 的安装目录下面如C:\oracle\product\10.2.0\db_1\NETWORK\ADMIN中找到listner.ora文件添加粗体部分。

SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = C:\oracle\product\10.2.0\db_1)
(PROGRAM = extproc)
)
(SID_DESC =
(GLOBAL_DBANAME = testDB)
(ORACLE_HOME = C:\oracle\product\10.2.0\db_1)
(SID_NAME = testDB)
)
)

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

本文出自“黑色笔记”