query: SELECT location_code ,  count(*) FROM Document_locations GROUP BY location_code
question: Are Showing the location codes and that number of documents in each location.
query_toks: SELECT location_code , count ( * ) FROM Document_locations GROUP BY location_code
query_toks_no_value: select location_code , count ( * ) from document_locations group by location_code
question_toks: Are Showing the location codes and that number of documents in each location.