Hi,
In general, the database name is entered in the ServerURL for authentication purposes.
If I am not able to login to the datacatalog after making changes in the ServerURL, then I would use of the following `web local login` in order to modify the server configuration (with the right values) based on the requirement:
[http://<host_name>:9090/denodo-data-catalog/#/web-local-login](http://<host_name>:9090/denodo-data-catalog/#/web-local-login)
In the login page displayed for the above link, enter your password (i.e default ``admin`` password) and login to the application. Then follow the below steps to specify the correct database name in the ServerURL,
* Open the **[Server Set-up](https://community.denodo.com/docs/html/browse/latest/en/vdp/data_catalog/administration/servers_configuration/servers_configuration#configure-the-virtual-dataport-servers:~:text=view%20details%20tab.-,Configure%20the%20Virtual%20DataPort%20Servers,-In%20the%20Servers )** in the Administration Menu.
* The Server set-up will have the VDP Servers section under which the Servers could be configured.
* Click on the **edit** symbol to edit the server registered under the VDP Servers.
* Edit Server dialog box would appear, in which you could edit the ServerURL with the correct database name to login without any issue.
For further information, please refer to the [Local Authentication](https://community.denodo.com/docs/html/browse/latest/en/vdp/data_catalog/authentication/local_authentication#dc-local-authentication) document under the DataCatalog Guide section.
If you still need further assistance and if you are a valid support user, you can raise a [Support Case](https://support.denodo.com/cases/add), for further assistance from the Support Team.
Hope it helps!