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别人能连，我用pl/sql却连不上
仔细对比后发现是tns配置问题，管理员提供的是SID，而不是服务名
QQQQ =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.15.50)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME= orcl)
)
)
改为
QQQQ =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.15.50)(PORT = 1521))
)
(CONNECT_DATA =
(SID= orcl)
)
)
ORA-12514 TNS 监听程序当前无法识别连接描述符中请求服务
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原文地址：http://www.cnblogs.com/blackice/p/5662815.html
