Add this to your query. Then, set Status under Field Formatting tab to Icon and IconType to Status.
CASE NPM_NV_WL_ALERT_APS_V.Status
WHEN '0' THEN 'Unknown.gif'
WHEN '1' THEN 'Up.gif'
WHEN '2' THEN 'Down.gif'
END AS Status
Add this to your query. Then, set Status under Field Formatting tab to Icon and IconType to Status.
CASE NPM_NV_WL_ALERT_APS_V.Status
WHEN '0' THEN 'Unknown.gif'
WHEN '1' THEN 'Up.gif'
WHEN '2' THEN 'Down.gif'
END AS Status