Oracle啓動服務後 報 ：ORA-12514: TNS: 監聽程序當前無法識別連接描述符中請求的服務

修改文件 app\user\product\11.2.0\dbhome_1\NETWORK\ADMIN\listner.ora

# listener.ora Network Configuration File: D:\app\asus\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 = D:\app\asus\product\11.2.0\dbhome_1)
      (PROGRAM = extproc)
      (ENVS = "EXTPROC_DLLS=ONLY:D:\app\asus\product\11.2.0\dbhome_1\bin\oraclr11.dll")
    )
)

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
      (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
    )
  )


ADR_BASE_LISTENER = D:\app\asus

添加

   (SID_DESC =
      (GLOBAL_NAME = ORCL)（你的database的名字）
      (ORACLE_HOME = D:\app\asus\product\11.2.0\dbhome_1)
      (SID_NAME = ORCL)
      (ENVS = "EXTPROC_DLLS=ONLY:D:\app\asus\product\11.2.0\dbhome_1\bin\oraclr11.dll")
    )

在SID_LIST_LISTENER 的括號裏   *（一定放在括號中）*    (ENVS = "EXTPROC_DLLS=ONLY:D:\app\asus\product\11.2.0\dbhome_1\bin\oraclr11.dll")  這一句，看你下面的是什麼，這個就寫什麼

修改好的文件：

# listener.ora Network Configuration File: D:\app\asus\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 = D:\app\asus\product\11.2.0\dbhome_1)
      (PROGRAM = extproc)
      (ENVS = "EXTPROC_DLLS=ONLY:D:\app\asus\product\11.2.0\dbhome_1\bin\oraclr11.dll")
    )
   (SID_DESC =
      (GLOBAL_NAME = ORCL)
      (ORACLE_HOME = D:\app\asus\product\11.2.0\dbhome_1)
      (SID_NAME = ORCL)
      (ENVS = "EXTPROC_DLLS=ONLY:D:\app\asus\product\11.2.0\dbhome_1\bin\oraclr11.dll")
    )
)

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
      (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
    )
  )


ADR_BASE_LISTENER = D:\app\asus