SELECT document_id FROM Documents WHERE document_type_code  =  "CV" EXCEPT SELECT document_id FROM Documents_with_expenses
Show ids for all documents in type CV without expense budgets.
SELECT document_id FROM Documents WHERE document_type_code = `` CV '' EXCEPT SELECT document_id FROM Documents_with_expenses
select document_id from documents where document_type_code = value except select document_id from documents_with_expenses
Show ids for all documents in type CV without expense budgets .