old version of SCCM Clients Collection

Some times old version could cause of some issues… below is a quick query to find the old version of systems

 

select SMS_R_SYSTEM.ResourceID,SMS_R_SYSTEM.ResourceType,SMS_R_SYSTEM.Name,SMS_R_SYSTEM.SMSUniqueIdentifier,SMS_R_SYSTEM.ResourceDomainORWorkgroup,SMS_R_SYSTEM.Client from SMS_R_System where ((DATEDIFF(hh, SMS_R_SYSTEM.AgentTime, getdate()) < 23) and AgentName = "SMS_AD_SYSTEM_DISCOVERY_AGENT") and ( SMS_R_System.ClientVersion is null)