Compute Devices with no OS captured.
select ds.device_name ,device_fk ,ds.device_type ,ds.physicalsubtype_name ,ds.serial_number ,ds.device_service_level ,ds.tags ,ds.device_first_added ,ds.device_last_changed ,ds.is_missing_os ,ds.ip_address from view_dbb_security_v2 ds where ds.is_missing_os = 'Yes' and ds.device_fk is not null
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Opportunities to enrich your data by doing a full discovery of devices.