I was able to create a base view using a CSV file with similar records as described above. I was able to do this by creating a Delimited file data source in the VDP Admin Tool. The missing field will be displayed as 'Null' or blank.
Please refer to the [Delimited File Sources](https://community.denodo.com/docs/html/browse/7.0/vdp/administration/creating_data_sources_and_base_views/delimited_file_sources/delimited_file_sources#delimited-file-sources) section of the Virtual DataPort Administration Guide for more information.
Hope this helps!