ORA-12514 TNS 监听程序当前无法识别连接描述符中请求服务 的解决方法

原文：https://blog.csdn.net/heyangyi_19940703/article/details/78401550

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:appadminproduct12.1.0dbhome_1NETWORKADMINlistener.ora,打开大致如下

# listener.ora Network Configuration File: G:appadminproduct12.1.0dbhome_1NETWORKADMINlistener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = CLRExtProc)
(ORACLE_HOME = G:appadminproduct12.1.0dbhome_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:appadminproduct12.1.0dbhome_1log

第三步：添加一段配置：
在：

(SID_DESC =
(SID_NAME = CLRExtProc)
(ORACLE_HOME = G:appadminproduct12.1.0dbhome_1)
(PROGRAM = extproc)
)
后面添加：
(SID_DESC =
(GLOBAL_DBNAME = ORCL)
(ORACLE_HOME = G:appadminproduct12.1.0dbhome_1)
(SID_NAME = ORCL)
)

添加完成的文件内容为：
# listener.ora Network Configuration File: G:appadminproduct12.1.0dbhome_1NETWORKADMINlistener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = CLRExtProc)
(ORACLE_HOME = G:appadminproduct12.1.0dbhome_1)
(PROGRAM = extproc)
)
(SID_DESC =
(GLOBAL_DBNAME = ORCL)
(ORACLE_HOME = G:appadminproduct12.1.0dbhome_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:appadminproduct12.1.0dbhome_1log

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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作者：Hilary-He
来源：CSDN
原文：https://blog.csdn.net/heyangyi_19940703/article/details/78401550
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