asked on

SQL Query

Hi, Expert
We have gps system each time device sending data every minute , if the vehicle is moving it has speed data if the vehicle is stopped then speed =0
I need to Calculate the total stopped time and location of the vehicle where is stopped and how long.

Please send me if you have any example

Columns as describe below

devicenum
latitude
longitude
speed
systime

Ahmed Merghani

Your query will be something like:

select count(*), latitude, longitude from YOUR_TABLE group by latitude, longitude where speed=0

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This will give you the locations of vehicle where is stopped and how long.
regarding the total stop time regardless of where may be as this:

select count(*) from YOUR_TABLE  where speed=0

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Put in mind the result is number of minutes as you said the data sending is every minute.

Asrar Azmi

ASKER

Dear Expert,

Thanks for your quick reply ,
How we can display systime column also with particular location like Stop Duration Like From To date time.

Waiting your reply.

Phillip Burton

How about this:

with T1 as (
select *, sum(case speed when 0 then 0 else 1 end) over(order by systime) as MyGroup
from YOUR_TABLE)
select devicenum, latitude, longitude, min(systime) as MinTime, max(systime) as MaxTime
from T1
group by devicenum, latitude, longitude, MyGroup

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Ahmed Merghani

select count(*), latitude, longitude from YOUR_TABLE group by latitude, longitude, min(systime) From, max(systime) To where speed=0

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Asrar Azmi

ASKER

Dear Ahmed,
Above Query have error can you fix it and send me again.

Ahmed Merghani

Dear asrar and sorry for the mistake:

select count(*), devicenum, latitude, longitude from YOUR_TABLE group by devicenum, latitude, longitude, min(systime) FromTime, max(systime) ToTime where speed=0

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Wish this solve the problem.

Asrar Azmi

ASKER

Thanks dear Ahmed
Can you share your personal e-mail and contact details with me ?

ASKER CERTIFIED SOLUTION

Ahmed Merghani

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