这个问题已在这里得到解答 -

如何解决错误：ORA-12514：TNS：监听器当前不知道连接描述符中请求的服务 [ ^ ]

检查它是否有助于解决您的问题。



其他参考：

ORA-12514 TNS：听众当前不知道连接描述符中请求的服务 [ ^ ]



T hanks：）

This question is already answered here -
how to resolve error :ORA-12514: TNS:listener does not currently know of service requested in connect descriptor[^]
Check if it helps resolving your problem.

Other references:
ORA-12514 TNS:listener does not currently know of service requested in connect descriptor[^]

Thanks :)