Asrar Azmi
asked on
How to get Date Difference between Two Dates
Hi Experts,
We have table having following column
ID,systime,eventcode
ID = field autonumber
Systime =System Time
EventCode = 4,12 ( where 4= Start and 12= stop )
we need to calculate Vehicle working duration between two dates.
Kindly check the attached picture file.
Snap1.png
We have table having following column
ID,systime,eventcode
ID = field autonumber
Systime =System Time
EventCode = 4,12 ( where 4= Start and 12= stop )
we need to calculate Vehicle working duration between two dates.
Kindly check the attached picture file.
Snap1.png
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could be a big assumption
The information appears to be collected 24x7 or 24x5, so for ANY selection made involving a start point, a start event could be disassociated from its related stop event or vice-versa.
in fact row 1 of the image displays exactly that (an eventCode 12)
In that image you have asked for data >= '2013-09-10 00:00:00'
and the first row has a datetime of '2013-09-10 21:44:43:000'
>> does that mean the equipment was running between 00:00:00 and 21:44:43?
---------
whilst you have specified MS SQL 2008 as a topic, do you happen to be using SQL 2012?
{SQL 2012 has a feature that would be darn handy: lead()/lag() }
The information appears to be collected 24x7 or 24x5, so for ANY selection made involving a start point, a start event could be disassociated from its related stop event or vice-versa.
in fact row 1 of the image displays exactly that (an eventCode 12)
In that image you have asked for data >= '2013-09-10 00:00:00'
and the first row has a datetime of '2013-09-10 21:44:43:000'
>> does that mean the equipment was running between 00:00:00 and 21:44:43?
---------
whilst you have specified MS SQL 2008 as a topic, do you happen to be using SQL 2012?
{SQL 2012 has a feature that would be darn handy: lead()/lag() }
any chance of running this and providing the results as text please?
SELECT
ID
, devicenum
, systime
, eventcode
FROM gpssystem.dbo.gpshistory
WHERE devicenum = '359231039842834'
AND eventcode IN (4, 12)
AND systime >= '2013-09-09 00:00:00'
AND systime < '2013-09-11 00:00:00'
http://technet.microsoft.com/en-us/library/ms189794.aspx
select datediff (minutes, startDate, endDate )
select datediff (minutes, (select sysdate from yourTable where eventID = 4 ) , (select sysdate from yourTable where eventID = 12 ) )