How to check the status of Oracle listener

To check the status of the Oracle listener, you can follow these steps:

1. Open the command line interface.
2. Enter the following command to check the status of the listener:
3. listener control status
4. This will display the current status of the listener, including the listening address, listener version, listener process ID, etc.
5. If the listener is not started, you can use the following command to start the listener:
6. start the listener control
7. If the listener has been started, you can use the following command to stop it:
8. Stop the listener.

Please note that these commands need to be executed on a computer with the Oracle client installed and with permission to manage the Oracle listener.