PLSQL Developer 11.0.0.1762 中文綠色注冊版下載後，配置tns的問題

tnsnames.ora Network Configuration File: tnsnames.ora

Generated by Oracle configuration tools.

orcl =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1 )(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = orcl )
)
)

tns這樣沒有改變，請問怎麼設置？

最佳回答：

http://blog.csdn.net/wwbmyos/article/details/11475551/