Report to find all computers with no logon data

[mlevar]

I'm attempting to run a report to find all devices that either have Config > User Info > Last logon as blank/null or that have a logon time older than X days but i keep getting blank results. Would someone be able to assist? Thank you.

I've used this as a baseline (but this does not include assets with no logon data)

Select Top 1000000 SubQuery.Username,
  SubQuery.Domain As Userdomain,
  SubQuery.LastLogon,
  tblAssets.AssetName,
  tblAssets.Domain
From tblCPlogoninfo
  Inner Join (Select Top 1000000 tblCPlogoninfo.Username,
        tblCPlogoninfo.Domain,
        Max(tblCPlogoninfo.logontime) As LastLogon
      From tblCPlogoninfo
      Group By tblCPlogoninfo.Username,
        tblCPlogoninfo.Domain) SubQuery On tblCPlogoninfo.Username =
    SubQuery.Username And tblCPlogoninfo.Domain = SubQuery.Domain And
    tblCPlogoninfo.logontime = SubQuery.LastLogon
  Inner Join tblAssets On tblAssets.AssetID = tblCPlogoninfo.AssetID

[Andy_Sismey]

Hi ,

I think this should do what you need, I have set the Days to 90 :

Select Top 1000000 SubQuery.Username,
  SubQuery.Domain As Userdomain,
  SubQuery.LastLogon,
  tblAssets.AssetName,
  tblAssets.Domain
From tblCPlogoninfo
  Inner Join (Select Top 1000000 tblCPlogoninfo.Username,
        tblCPlogoninfo.Domain,
        Max(tblCPlogoninfo.logontime) As LastLogon
      From tblCPlogoninfo
      Group By tblCPlogoninfo.Username,
        tblCPlogoninfo.Domain) SubQuery On tblCPlogoninfo.Username =
    SubQuery.Username And tblCPlogoninfo.Domain = SubQuery.Domain And
    tblCPlogoninfo.logontime = SubQuery.LastLogon
  Inner Join tblAssets On tblAssets.AssetID = tblCPlogoninfo.AssetID
Where (SubQuery.LastLogon <= DateAdd(day, -90, GetDate()) Or
    SubQuery.LastLogon Is Null)