SCCM Configmgr report Count specific inventory file on computers

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