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关于plsql连接的教程有很多，其中最重要的就是D:\oracle\product\10.2.0\db_1\network\ADMIN下的listener和tnsnames两个文件。经过反复修改与测试，终于成功了。
Listener文件:
# listener.ora Network Configuration File: d:\oracle\product\10.2.0\db_1\network\admin\listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = D:\oracle\product\10.2.0\db_1)
(PROGRAM = extproc)
)
(SID_DESC =
(GLOBAL_DBANAME = orcl)
(ORACLE_HOME = D:\oracle\product\10.2.0\db_1)
(SID_NAME = ticelab)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
(ADDRESS = (PROTOCOL = TCP)(HOST = hitliyong)(PORT = 1521))
)
)
Tnsnames文件:
# tnsnames.ora Network Configuration File: C:\oracle\product\10.2.0\db_1\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.
TICELAB =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = hitliyong)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = ticelab)
)
)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
)
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
)
)
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原文地址：http://www.cnblogs.com/liyong-hit/p/4512992.html
