oracle 数据库 错误 ORA-12514 TNS 监听程序当前无法识别连接描述符中请求服务 解决办法

当oracle 报12584错误时

一、去把这tnsnames.ora,listener.ora两个文件里面的localhost 全部改为127.0.0.1 包括你连接数据库用的工具,

改完之后，重启监听服务。（重启监听服务可以从任务管理器--->服务--->Oracle???Listenter 停止，然后启动））

如果没有效果，则继续下面操作

增加一段代码至tnsnames.ora配置文件:

      (SID_DESC =

    (GLOBAL_DBNAME = ORCL)

    (ORACLE_HOME = F:\app\Administrator\product\11.2.0\dbhome_1)

    (SID_NAME = ORCL)

    )

如图所示(记得改路径)：



每次操作完，记得重启监听服务。还不行的话直接用我的配置文件把。

#配置文件： listener.ora

# listener.ora Network Configuration File: F:\app\Administrator\product\11.2.0\dbhome_1\NETWORK\ADMIN\listener.ora

# Generated by Oracle configuration tools.

SID_LIST_LISTENER =

  (SID_LIST =

    (SID_DESC =

      (SID_NAME = CLRExtProc)

      (ORACLE_HOME = F:\app\Administrator\product\11.2.0\dbhome_1)

      (PROGRAM = extproc)

      (ENVS = "EXTPROC_DLLS=ONLY:F:\app\Administrator\product\11.2.0\dbhome_1\bin\oraclr11.dll")

    )

      (SID_DESC =

    (GLOBAL_DBNAME = ORCL)

    (ORACLE_HOME = F:\app\Administrator\product\11.2.0\dbhome_1)

    (SID_NAME = ORCL)

    )

  )

LISTENER =

  (DESCRIPTION =

    (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))

  )

ADR_BASE_LISTENER = F:\app\Administrator

分割线-------------------------------------------------------------------------------------------------

#配置文件:tnsnames.ora

# tnsnames.ora Network Configuration File: F:\app\Administrator\product\11.2.0\dbhome_1\NETWORK\ADMIN\tnsnames.ora

# Generated by Oracle configuration tools.

LISTENER_ORCL =

  (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))

ORACLR_CONNECTION_DATA =

  (DESCRIPTION =

    (ADDRESS_LIST =

      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))

    )

    (CONNECT_DATA =

      (SID = CLRExtProc)

      (PRESENTATION = RO)

    )

  )

ORCL =

  (DESCRIPTION =

    (ADDRESS_LIST =

      (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))

    )

    (CONNECT_DATA =

      (SERVICE_NAME = orcl)

    )

  )