Calculate elapsed Workhours between 2 timestamps

Hi,
Is there any function that would return the number of workhours between 2 timestamps in the tool depending upon the calendar defined. It would be great if someone could provide any inputs of the way to calculate this.
Thanks,
Sree

There would be a bit of code involved but here's one approach to calculating the number of working hours based on calendar rules.
There's an OOTB method that returns the number of days between to times based on a specific Calendar rule:
calendar as Fuego.Lib.CalendarRule
workDays as Int
calendar = CalendarRule.fetch(calendarName : "US_STD")
elapsedDays calendar
    using fromDate = 'now',
          toDate = futureDate
    returning workDays = workDaysIf you have to have the number of hours, you'd first have to find out how many working days are left in today:
totalHours as Int - 0
todayStartLaborTime as Time
todayEndLaborTime as Time
closeTime(CalendarRule, time : 'now', out endLaborTime : todayEndLaborTime)
startTime(CalendarRule, time : 'now', out startLaborTime : todayStartLaborTime)
// are we already in the workday?
if todayStartLaborTime < 'now' && todayEndLaborTime > 'now' then
    // get the number of work hours left today
    timedifference = todayEndLaborTime - 'now'
    totalHours = totalHours + timedifference.hours
// workday not started today?
elseif todayStartLaborTime > 'now' then
    timedifference = todayEndLaborTime - todayStartLaborTime
    totalHours = totalHours + timedifference.hours
endThen you would need to see how many hours are in the final working day:
futureStartLaborTime as Time
futureStartLaborTime as Time
futureEndLaborTime as Time
startTime(CalendarRule, time : futureDate, out startLaborTime : futureStartLaborTime)
closeTime(CalendarRule, time : futureDate, out endLaborTime : futureEndLaborTime)
// how many hours in the last workday are there?
if futureDate > futureStartLaborTime && futureDate < futureEndLaborTime then
    // get the number of work hours left that day
    timedifference = futureStartLaborTime - futureDate
    totalHours = totalHours + timedifference.hours
end Finally, you'd want to loop through the days between the start and end days (non-inclusively) and get the number of working hours in each day.
nextStartTime as Time
nextEndTime as Time
previousDayEndTime as Time = 'now'
while previousDayEndTime < futureDate do
    // get the next day's start and end times
    nextWorkDayStartTime calendar
        using time = previousDayEndTime
        returning nextStartTime = nextStartTime
    nextWorkDayCloseTime calendar
        using time = previousDayEndTime
        returning nextEndTime = nextCloseTime
    timedifference = nextEndTime - nextStartTime
    totalHours = totalHours + timedifference.hours
    previousDayEndTime = nextEndTime
endHope this helps,
Dan

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To calculate elapsed time between two timestamp attributes

Hello,
I have two timestamp attributes (create_tmstmp & elapsed_tmstmp) in a table.
It has two rows and I need the difference in seconds between these two attributes.
The below query is returning negative value and incorrect value.
Any help is appreciated.
Row 1:
Create_tmstmp : 2/2/2010 9:53:15.832 PM
Elapsed_tmstmp : 2/3/2010 9:49:47.527 AM
Row 2:
Create_tmstmp : 2/3/2010 5:35:47.614 AM
Elapsed_tmstmp : 2/3/2010 11:03:15.937 AM
Select
( (extract(day from elapsed_tmstmp )-extract(day from create_tmstmp))*86400+
(extract(hour from elapsed_tmstmp )-extract(hour from create_tmstmp))*3600+
(extract(minute from elapsed_tmstmp)-extract(minute from create_tmstmp))*60+
(extract(second from elapsed_tmstmp)-extract(second from create_tmstmp))*1000) completed_tmstmp
From table_a;
The output is :
completedtmstmp_
74655
-11997
Thanks.
Edited by: solsam on Feb 4, 2010 11:57 AM

hi,
The problem with cast to date is
SQL> select to_char(cast(to_timestamp('2/2/2010 9:53:15.832 PM','mm/dd/yyyy hh:mi:ss.ff pm') as dat
e),'mm/dd/yyyy hh:mi:ss pm') from dual
2 ;
TO_CHAR(CAST(TO_TIMEST
02/02/2010 09:53:16 pm
so cast rounds it up, resulting in:
SELECT (
CAST (TO_TIMESTAMP ('2/2/2010 9:53:15.832 PM', 'mm/dd/yyyy hh:mi:ss.ff pm') AS DATE)
- CAST (TO_TIMESTAMP ('2/2/2010 9:53:14.432 PM', 'mm/dd/yyyy hh:mi:ss.ff pm') AS DATE)
* 86400 x
FROM DUAL
X
2
A more exact answer would use, to_char and to_date to convert :
SELECT (
TO_DATE (TO_CHAR (TO_TIMESTAMP ('2/2/2010 9:53:15.832 PM', 'mm/dd/yyyy hh:mi:ss.ff pm'),
'mm/dd/yyyy hh:mi:ss pm'),
'mm/dd/yyyy hh:mi:ss pm')
- TO_DATE (TO_CHAR (TO_TIMESTAMP ('2/2/2010 9:53:14.432 PM', 'mm/dd/yyyy hh:mi:ss.ff pm'),
'mm/dd/yyyy hh:mi:ss pm'),
'mm/dd/yyyy hh:mi:ss pm')
* 86400 x
FROM DUAL
X
1
Edit:
Massimo Ruocchio's answer actually works better.
-AC
Edited by: user12026137 on Feb 9, 2010 12:45 PM

Time calculation: type date or timestamp; how to calculate time in between?

Dear experts,
I like to create a simple flightbook table: FLIGHTID, TAKEOFFTIME, LANDINGTIME.
1. First question:
I prefer to use UTC as timezone in the app.
Which datatype would be best to take?
date or timestamp?
2. Secound question:
I like to calculate the flighttime between TAKEOFFTIME, LANDINGTIME?
How do I do this best?
Add a column flighttime?
How do I calculate the flighttime between TAKEOFFTIME, LANDINGTIME?
Advice and tips are very welcome!
Kind regards
Lorenz
--

Hi, Lorenz,
lokeller wrote:
Dear experts,
I like to create a simple flightbook table: FLIGHTID, TAKEOFFTIME, LANDINGTIME.
1. First question:
I prefer to use UTC as timezone in the app.
Which datatype would be best to take?
date or timestamp?Based on what you've said, I'd use DATE. DATEs are much more conveinet to manipulate than TIMESTAMPs.
TIMESTAMPs are good if you need fractipons of a second. For airplane flights, you probably don't even need seconds, let alone fractions.
TIMESTAMP WITH TIME ZONE is useful for multiple time zones. You're converting everything to UTC, so you don't need that.
2. Secound question:
I like to calculate the flighttime between TAKEOFFTIME, LANDINGTIME?
How do I do this best?
Add a column flighttime?No. Only consider adding a column if you're frequently filtering on flight time and need to index it. It's very rare when you need to do this. Normally, you just store the takeofftime and landingtime, and compute the flightime from these when you need to.
How do I calculate the flighttime between TAKEOFFTIME, LANDINGTIME?
landingtime - takeofftimeproduces a NUMBER, the number of days that landingtime is after takeofftime. You'll probably want the time in units of 1 hour or 1 mintue, not 1 day, so multiply that difference by the number of hours (as shown below) or minutes in a day:
SELECT     flightid
,     takeofftime
,     landingtime
,     (landingtime - takeofftime) * 24     AS hours_in_flight
FROM     flightbook
;

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Hi,
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How to find the elapsed time between 2 events ?

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Message Edité par chilly charly le 08-29-2005 09:24 PM
Chilly Charly (aka CC)
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Attachments:
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Hi all,
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amount],null)
There are advantages of having two period attributes on the dimension, one with a fully unique
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[Date invoice].[Bonus calendar - Week].[Bonus week of year].&[2015]&[1]
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*[CurrentSalesPeriod]
,IIF([Date
invoice].[Bonus calendar - Week].Currentmember.parent.properties("key") +[Date
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Hi,
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11:00:00 AM                       3kW
11:00:02 AM                       2.9kW
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How to read time stamps from a spreadsheet and calculate the difference between consecutive time stamps?

Hi,
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11:00:00 AM                       3kW
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11:00:06 AM                       3.1kW
The above data doesn't make any sense, but it is just for the purpose of this question.
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Hi,
Can anyone suggets how I can write a rule to calculate the variances between quarters, Qtr1 vs Qtr2, Qtr2 vs Qtr3 etc, and store them in a scenario so that I dont calculatethem on a report ?
Thanks,
IK

Hi. Why don't you want to do this on the report - it's much easier and you can get favorable/unfavorable comparisons? But, if you want to do the rule, here's the approach.
Create the scenario with QTD as the frequency so you don't have monthly periods
Limit the rule to run just for the scenario and don't run any other rules for the scenario
Use a select case to determine which period (Q1, etc.) is being calc'd to populate variables that contain the source period and year (for going back a year to Q4).
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You'd want to rerun the rule at all value members for both base entities and parent entities. May need to clear all existing data (HS.Clear "A#ALL") in the scenario/year/period/entity/value first.
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alter session set nls_date_format = 'YYYY-MM-DD HH24:MI:SS';
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'' avg_date
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Thanks,
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Hi,
Here's one way to get the mid-point between 2 DATEs:
WITH input_data AS
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FROM    input_data
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Message was edited by: Frank Kulash
Actually, this works equally well if start_date and end_date are TIMESTAMPs.
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Calculate elapsed Workhours between 2 timestamps

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