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ORA-12154 TNS 无法解析指定的连接标识符

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Release: 2016-06-07 17:08:51
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ORA-12154 TNS 无法解析指定的连接标识符 .今天数据库突然连接时报这个错误,plsql连接不上,应用程序连接不上,但是sql可以连上

ORA-12154 TNS 无法解析指定的连接标识符 .今天数据库突然连接时报这个错误,plsql连接不上,,应用程序连接不上,但是sql可以连上。到网上找了半天,也改了半天。其实我的listener.ora 文件是一直没有动的。网上的人说改了之后重启服务就可以。

目录结构如下:

# listener.ora Network Configuration File: D:\Oracle\product\10.1.0\db_1\network\admin\listener.ora
# Generated by Oracle configuration tools.
# 我加了下面的东西 (SID_DESC=
#     (GLOBAL_DBNAME = ORCL)   
#      (ORACLE_HOME = d:\oracle\product\10.1.0\db_1)       
#      (SID_NAME =ORCL)    
#    )


SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = PLSExtProc)
      (ORACLE_HOME = D:\oracle\product\10.1.0\db_1)
      (PROGRAM = extproc)
    )
    (SID_DESC=
      (GLOBAL_DBNAME = ORCL)   
      (ORACLE_HOME = d:\oracle\product\10.1.0\db_1)       
      (SID_NAME =ORCL)    
    )
  )

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS_LIST =
        (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
      )
      (ADDRESS_LIST =
        (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
      )
    )
  )

其实什么都不必要改;只需要重启Oracle listener服务即可解决问题。

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