Select Top 1000000 tblAssets.AssetID,
  tblAssets.AssetName,
  tblAssets.Domain,
  tsysAssetTypes.AssetTypename As AssetType,
  tblAssets.Username,
  tblAssets.Userdomain,
  Coalesce(tsysOS.Image, tsysAssetTypes.AssetTypeIcon10) As icon,
  tblAssets.IPAddress,
  tsysIPLocations.IPLocation,
  tblAssetCustom.Manufacturer,
  tblAssetCustom.Model,
  Coalesce(tsysOS.OSname, tblMacOSInfo.SystemVersion, tblLinuxSystem.OSRelease)
  As OS,
  tblAssets.SP,
  tblAssets.Lastseen,
  tblAssets.Lasttried
From tblAssets
  Inner Join tblAssetCustom On tblAssets.AssetID = tblAssetCustom.AssetID
  Inner Join tsysAssetTypes On tsysAssetTypes.AssetType = tblAssets.Assettype
  Inner Join tblState On tblState.State = tblAssetCustom.State
  Inner Join tsysIPLocations On tsysIPLocations.LocationID =
      tblAssets.LocationID
  Left Join tsysOS On tsysOS.OScode = tblAssets.OScode
  Left Join tblMacOSInfo On tblAssets.AssetID = tblMacOSInfo.AssetID
  Left Join tblLinuxSystem On tblAssets.AssetID = tblLinuxSystem.AssetID
Where tblAssets.Lastseen < GetDate() - 180 And tblState.Statename = 'Active'
Order By tblAssets.IPNumeric,
  tblAssets.Domain,
  tblAssets.AssetName