Well the idea is in a report I want to show null instead of the acknowledged time.
FOR SQL this would be something like:
SELECT Case [AcknowledgedTime]
When '12/30/1899 8:00:00 AM' THEN null
Else [AcknowledgedTime]
End
FROM [SolarWindsEOC].[dbo].[EOC_AlertStatus]
Where Acknowledged = 0
Also FWIW I can get this to work on NPM using SWISv3.