If the database was created in drive C at creation time, then RavenDB knows where it is located.
Run your RavenDB server.
Specify your localhost URL when initializing the store:

  var store = new DocumentStore
            {
                Urls = new[] {"http://127.0.0.1:8080"},
                Database = "your-database-name"
            };

  store.Initialize();

After that, you just query your database.

If you manually moved the database from its original created location to some other folder then you couldn't query.

You can Export the database and Import it to a new database in a new location.

You can point RavenDB server to a specific data directory - in this way you can load your database and query it. Simply edit settings.json in the folder where you find Raven.Server.exe and write the desired data folder in DataDir property. In the end, your settings file would look similar to this:

{
  "DataDir": "D:\\foo\\bar",
 /* other settings... */
}

Note, if you run RavenDB in Docker, you can adjust the configuration using environment variables. (more about this here: https://ravendb.net/docs/article-page/4.2/csharp/start/installation/running-in-docker-container)