@Jarek Kupisz​ :

It is possible to connect to a compute within the same workspace using ODBC. However, there are some things you need to consider.

Firstly, make sure that the ODBC driver you are using is compatible with the version of Databricks you are running. You can check this in the Databricks documentation.

Secondly, make sure that you have the necessary permissions to access the compute you are trying to connect to. You may need to configure the firewall settings to allow connections between the computes.

Thirdly, check that the hostname or IP address you are using to connect to the compute is correct. You can use the hostname command to get the hostname of the compute you are trying to connect to.

Finally, try testing the ODBC connection using a different tool or client to rule out any issues with the ODBC driver or configuration. You can use the isql command to test the ODBC connection from the command line.