解决ORA-12514: TNS: 监听程序当前无法识别连接描述符中请求的服务

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第一步：打开Oracle Net Manager

进行如下配置：

第二步:找到查看listener.ora文件：位于oracle 安装目录的app文件夹目录下面

我的位置是：G:\app\admin\product\12.1.0\dbhome_1\NETWORK\ADMIN\listener.ora,打开大致如下

# listener.ora Network Configuration File: G:\app\admin\product\12.1.0\dbhome_1\NETWORK\ADMIN\listener.ora# Generated by Oracle configuration tools.SID_LIST_LISTENER =  (SID_LIST =    (SID_DESC =      (SID_NAME = CLRExtProc)      (ORACLE_HOME = G:\app\admin\product\12.1.0\dbhome_1)      (PROGRAM = extproc)    )  )LISTENER =  (DESCRIPTION_LIST =    (DESCRIPTION =      (ADDRESS = (PROTOCOL = TCP)(HOST = 10.0.0.217)(PORT = 1521))    )    (DESCRIPTION =      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))    )  )ADR_BASE_LISTENER = G:\app\admin\product\12.1.0\dbhome_1\log

第三步：添加一段配置：

在：

    (SID_DESC =      (SID_NAME = CLRExtProc)      (ORACLE_HOME = G:\app\admin\product\12.1.0\dbhome_1)      (PROGRAM = extproc)    )

后面添加：

   (SID_DESC =      (GLOBAL_DBNAME = ORCL)      (ORACLE_HOME = G:\app\admin\product\12.1.0\dbhome_1)        (SID_NAME = ORCL)    )

添加完成的文件内容为：

# listener.ora Network Configuration File: G:\app\admin\product\12.1.0\dbhome_1\NETWORK\ADMIN\listener.ora# Generated by Oracle configuration tools.SID_LIST_LISTENER =  (SID_LIST =    (SID_DESC =      (SID_NAME = CLRExtProc)      (ORACLE_HOME = G:\app\admin\product\12.1.0\dbhome_1)      (PROGRAM = extproc)    )   (SID_DESC =      (GLOBAL_DBNAME = ORCL)      (ORACLE_HOME = G:\app\admin\product\12.1.0\dbhome_1)        (SID_NAME = ORCL)    )  )LISTENER =  (DESCRIPTION_LIST =    (DESCRIPTION =      (ADDRESS = (PROTOCOL = TCP)(HOST = 10.0.0.217)(PORT = 1521))    )    (DESCRIPTION =      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))    )  )ADR_BASE_LISTENER = G:\app\admin\product\12.1.0\dbhome_1\log

SID_NAME 对应网络服务命名；GLOBAL_DBNAME 对应服务名，修改完成后重启服务就好了！

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