I Have this SQL script
SELECT
StartTime.EventTime,
Nodes.Caption,
DATEDIFF(Mi, StartTime.EventTime,
(SELECT TOP 1
EventTime
FROM Events AS Endtime
WHERE EndTime.EventTime > StartTime.EventTime AND EndTime.EventType = 5
AND EndTime.NetObjectType = 'N'
AND EndTime.NetworkNode = StartTime.NetworkNode
ORDER BY EndTime.EventTime)) AS DurationInMinutes
FROM Events StartTime INNER JOIN Nodes ON StartTime.NetworkNode = Nodes.NodeID
WHERE (StartTime.EventType = 1) AND (StartTime.NetObjectType = 'N')
ORDER BY StartTime.EventTime DESC
How can I filter this script with a specific Node and the Duration is null?