ORA-12514: TNS: 监听进程不能解析在连接描述符中给出的 SERVICE_NAME 错误的解决

PL/SQL DEVELOPER 连接数据库ORCL时总报ORA-12514: TNS: 监听程序当前无法识别连接描述符中请求的服务!

解决方案：

        到oracle 的安装目录下面如D:\oracle\product\10.2.0\db_1\NETWORK\ADMIN中找到listner.ora文件。

【修改前的文件】：

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# listener.ora Network Configuration File: D:\oracle\product\10.2.0\db_1\NETWORK\ADMIN\listener.ora
# Generated by Oracle configuration tools.


SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = PLSExtProc)
      (ORACLE_HOME = D:\oracle\product\10.2.0\db_1)
      (PROGRAM = extproc)
    )
  )


LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
    )
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = PC201307291745)(PORT = 1521))
    )
  )

------------------------------------------------------------------------------------------------

【修改后的文件】：

# listener.ora Network Configuration File: D:\oracle\product\10.2.0\db_1\NETWORK\ADMIN\listener.ora
# Generated by Oracle configuration tools.


SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = PLSExtProc)
      (ORACLE_HOME = D:\oracle\product\10.2.0\db_1)
      (PROGRAM = extproc)
    )

          (SID_DESC =
(GLOBAL_DBNAME =  orcl)
(ORACLE_HOME = D:\oracle\product\10.2.0\db_1)
(SID_NAME = orcl)
            )
  )


LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
    )
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = PC201307291745)(PORT = 1521))
    )
  )

-------------------------------------------------------------------------------------------------

在原始的文件中加入黑体字的部分，即将你创建的数据库的SID描述告知给监听器。保存文件。注意重新尝试登陆之前要按顺序重新启动一下SQLplus服务和TNSListner服务。