Full details:http://social.technet.microsoft.com/Forums/systemcenter/en-US/82a7862a-fc1c-4c45-9635-ee44489c2673/file-inventory-report-query-by-name-count-and-machineid?forum=configmgrreporting   select cs.Name0 [Computer name],COUNT(*) as [No of Times] from v_GS_SoftwareFile SF,v_GS_COMPUTER_SYSTEM cs where FileName like '%.mdf%' and SF.ResourceID=cs.ResourceID group by cs.Name0 order by 2 desc