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连接异常:ORA-12504: TNS:listener was not given the SERVICE_NAME in CONNECT_DATA

2012-06-01 
连接错误:ORA-12504: TNS:listener was not given the SERVICE_NAME in CONNECT_DATA我用ado.net去连接ora

连接错误:ORA-12504: TNS:listener was not given the SERVICE_NAME in CONNECT_DATA
我用ado.net去连接oracle出错
ORA-12504: TNS:listener was not given the SERVICE_NAME in CONNECT_DATA

代码如下
this.connect = new OracleConnection("Data Source=computerName;User Id=system;Password=123456789;");
this.connect.Open();

我的tnsnames.ora如下

ORACLR_CONNECTION_DATA =
  (DESCRIPTION =
  (ADDRESS_LIST =
  (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
  )
  (CONNECT_DATA =
  (SID = CLRExtProc)
  (PRESENTATION = RO)
  )
  )

ORCL =
  (DESCRIPTION =
  (ADDRESS = (PROTOCOL = TCP)(HOST = computerName)(PORT = 1521))
  (CONNECT_DATA =
  (SERVER = DEDICATED)
  (SERVICE_NAME = orcl)
  )
  )


我再其他客户端使用tnsping computerName都是没有问题的,太奇怪了
谢谢!

[解决办法]
我们的问题有点相似!抱歉,我也解决不了!
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介个不是TNS配置的问题,是Listener木有配对,检查一下呗
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之前我用jdbc连接11g 碰到这样的问题。 11g不能用sid 用server_name 加反斜扛
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搞定了没有,我也碰到这个问题。。我是装了11g odac 10g的oracle

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