Joining these these two queries (one regular and one grouped)

Question

Hello
I have these two queries I would like to join, however the later is a grouped query how can I join it with the first query?
Has to be joined on EventId. The second query is a total table scan.
SELECT AH.EventID,
AH.TechnicalAddress, AH.AlarmAlias, AH.AlarmPath as [OrgAlarmPath], AH.AlarmCounter as AlarmCount, AH.EventDateTime as EventTime,
AH.[Priority], AH.AlarmMessage, AH.EventText, AH.CallListName, AH.AlarmReadDate as EndTime,
AH.alh_EventEndedUserRemark as [EndRemark] --, SUM(seconds) here, and AlarmSessions here
FROM AlarmHistory AH
WHERE (AH.HeartbeatAlarm = 0 OR AH.HeartbeatAlarm IS NULL) AND
((AH.CallListID IS NOT NULL) OR (AH.alh_IsForStatistics = 1)) AND
(NOT (AH.alh_t_EventSubCode is NULL or AH.AlarmReadByUserID is NULL))
ORDER BY AH.EventID DESC
SELECT ia.eventID, SUM(DATEDIFF(SECOND,ia.eventTime,r.eventTime)) AS seconds, COUNT(*) as AlarmSessions
FROM alarmHistoryLog ia
INNER JOIN alarmHistoryLog r
ON ia.EventId = r.EventId
AND r.EventTypeId = 2
AND r.EventSeq = (SELECT MIN(eventSeq) FROM alarmHistoryLog WHERE eventSeq > ia.EventSeq AND EventTypeId = 2)
WHERE ia.EventTypeId = 0
group by ia.EventId
order by EventId desc
Henry

Answer 1

Try the below:
;with ctefirst as
SELECT AH.EventID,
AH.TechnicalAddress, AH.AlarmAlias, AH.AlarmPath as [OrgAlarmPath], AH.AlarmCounter as AlarmCount, AH.EventDateTime as EventTime,
AH.[Priority], AH.AlarmMessage, AH.EventText, AH.CallListName, AH.AlarmReadDate as EndTime,
AH.alh_EventEndedUserRemark as [EndRemark] --, SUM(seconds) here, and AlarmSessions here
FROM AlarmHistory AH
WHERE (AH.HeartbeatAlarm = 0 OR AH.HeartbeatAlarm IS NULL) AND
((AH.CallListID IS NOT NULL) OR (AH.alh_IsForStatistics = 1)) AND
(NOT (AH.alh_t_EventSubCode is NULL or AH.AlarmReadByUserID is NULL))
), ctesecond as
SELECT ia.eventID, SUM(DATEDIFF(SECOND,ia.eventTime,r.eventTime)) AS seconds, COUNT(*) as AlarmSessions
FROM alarmHistoryLog ia
INNER JOIN alarmHistoryLog r
ON ia.EventId = r.EventId
AND r.EventTypeId = 2
AND r.EventSeq = (SELECT MIN(eventSeq)
FROM alarmHistoryLog WHERE eventSeq > ia.EventSeq AND EventTypeId = 2)
WHERE ia.EventTypeId = 0
group by ia.EventId
Select A.*,B.seconds,B.AlarmSessions From ctefirst A
Inner join ctesecond B On A.EventId = B.EventID
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