Can Oracle be connected through other clients? If a TNS monitoring error occurs, it is most likely a problem with the Oracle server. Also, is the Oracle Sid written correctly in your connection? Both of these are possible
It can be connected. The reason is that the library name used to connect to the library is the name used for plsql connection when I connect, which is obviously wrong. . . Thank you for your answer
There are two possibilities. The first is that the TNS file is not configured on the server side. The second possibility is that the port the server is listening to is not 2700.
Can Oracle be connected through other clients? If a TNS monitoring error occurs, it is most likely a problem with the Oracle server. Also, is the Oracle Sid written correctly in your connection? Both of these are possible
It can be connected. The reason is that the library name used to connect to the library is the name used for plsql connection when I connect, which is obviously wrong. . .
Thank you for your answer
There are two possibilities. The first is that the TNS file is not configured on the server side. The second possibility is that the port the server is listening to is not 2700.