Hardware Inventory last scanned

SELECT SYS.Netbios_Name0 as 'Computer Name',
SIS.SMS_Installed_Sites0 as 'SMS Site', WS.LastHWScan,
DATEDIFF(day,WS.LastHWScan,GETDATE()) as 'Days Since HWScan'
FROM v_GS_WORKSTATION_STATUS WS INNER JOIN v_R_System SYS
ON WS.ResourceID = SYS.ResourceID INNER JOIN v_RA_System_SMSInstalledSites SIS
ON WS.ResourceID = SIS.ResourceID
WHERE SYS.Client_Type0 = 1 AND SYS.Active0 = 1 AND
WS.LastHWScan < DATEADD([day],+1,GETDATE())