Calculating work days in a function

I have a function that will count the total number of days between two weeks. ie May 19, 2010 to June 18, 2010 is 30 total days in my cycle. We dont work on weekend so that 30 days is not correct. The formula below is how i'm calculating the days between cycles. Is there any way to not count the weekends in my cycle? Please see formula below:
TIMESTAMPDIFF(SQL_TSI_DAY, "Release Dim"."Release Cycle Start Date", "Release Dim"."Release Cycle End Date")

Thanks Hammett81.
I used your formula but it's still calculating the days in my cycle as 30. My start date comes from my column "Release Dim"."Release Cycle Start Date" and my end date comes from the column "Release Dim"."Release Cycle End Date". Can you tell me why the formula below is giving me the weekends included in my count?
Thanks a million for all your help.
TIMESTAMPDIFF(SQL_TSI_DAY,TIMESTAMPADD( SQL_TSI_DAY, 7-DAYOFWEEK("Release Dim"."Release Cycle Start Date"),"Release Dim"."Release Cycle Start Date"),TIMESTAMPADD(SQL_TSI_DAY, 7-DAYOFWEEK("Release Dim"."Release Cycle End Date"),"Release Dim"."Release Cycle End Date"))+ CASE 7-DAYOFWEEK("Release Dim"."Release Cycle Start Date") WHEN 6 THEN 5 ELSE 7-DAYOFWEEK("Release Dim"."Release Cycle Start Date") END-CASE 7-DAYOFWEEK("Release Dim"."Release Cycle End Date") WHEN 6 THEN 5 ELSE 7-DAYOFWEEK("Release Dim"."Release Cycle End Date") END

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Calculating Work Day Formulas

We've recently adopted BOBJ/Webi at my company and I find the software to be rather easy to use in some instances and mind-wreckingly hard in others. One roadblock myself and other users are bumping into is calculating work days. A definition of a work day in this instance would be Monday through Friday. The monkey wrench is that we would also like to subtract out holidays, such as July 4th and Thanksgiving. Then end product would be calculating out what work day the current date is and how many days it is out of so that a simple straight-line extrapolation can be made (Metric/Current Work Day)*Total Work Days. Also, what we invoice/ship is not accounted for until the following day... for example, today (2.22.10) would be the 15th workday in February out of 20 total work days.
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Hi Ryan,
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For Example:
ucase(Calendar_year_lookup.Holiday_Flag)
ucase(Calendar_year_lookup.Holiday_Flag) = 'Y'
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Once they are created in Universe you export Universe.
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Function for calculating working days

Dear Oracle
Is there any function to calculate no of working days if I pass From date & To date?.
Thanks
Christy.

This would work for normal weekdays, but what about bank holidays?
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create or replace
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function eastern (p_year in number) return date is
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begin
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/

Suggestions on calculating work days instead of Calendar days

Hi there,
I would like for someone to suggest how would I approach a project in calculating a date that would consider if a date is a holiday or a work day. For example: If I take current date + 7 normally it would be a week (7 days). However, if a day in that week is a holiday, then it would return the 8th day. If the 8th day falls into a weekend, then, get the next work date.
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Thanks for your assistance in advance.

Thanks. This give me a pretty good start. I am thinking that I need a table that store holidays (Non-work days excluding weekend). Once I load this table into memory, then I would check the first date + 7. Then compare the two dates against the array to see if there is a holiday. If there is, then I would increment the end date by 1 and validay if it is a weekend date. If it is, I would continue to incurement until it is nolonger an weekend date. Once I have that, I would check the date against the array (where I left off) and continue to validate to see if there are more holidays.
What do you think about this approach?

Function module for getting teh last working day of a month.

Hi GURUS,
this is criteria,please help me
if V_T001B- FRYE1 < month entered in selection screen
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Find the previous period and its last working day from the function module
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Hi Rajeev,
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Ex:
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FM for Holiday & Next Working day

HI All,
Please suggest any single FM, which can give the current day is Holiday or not. If, Yes, the what is the next working day for a Facorty calender ID.
Both validation should be happend in a single FM.
Thanks & Regards,
Prabhakar.
Moderator message: FAQ, please search for previous discussions of this topic.
Edited by: Thomas Zloch on Apr 18, 2011 6:13 PM

hi ,
Pls check this FM
CALL FUNCTION 'BKK_CHECK_HOLIDAY'
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regards
Deepak.
Edited by: Deepak Dhamat on Apr 18, 2011 12:31 PM

Calculation of no. of working days (per Factory Cal) between 2 date chars

This question could be considered to be in continuation of a previous post called "Working days of month with factory calendar"
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I started with that, you are more then welcome to get ahead with it and let us know what happened...
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create or replace procedure holiday_proc is
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while d_date<'01-jan-2010'
loop
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d_date := d_date+1;
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How is lead time in working days calculated in 2LIS_05_QVUDN

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Thanks

Hello
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Regards
gajesh

Work day calculator

Hi All, I'd like to do a function in Numbers whereby a day is considered as 8h and I can then multiply a day rate by this.
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$400
$600
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How to set the payment Due date calculation as per working days.

how to make changes in the vendor Payment terms so that while calculating the Payment due date as per Payment terms, system calculates it based on Working Days & not the Calender days ?
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Add Working Days Function

All,
I have created the following function to add working days to a date...
create or replace function add_working_days(
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return date
as
v_weeks number;
v_adj number;
begin
v_weeks := trunc(p_days/5);
if to_number(to_char(p_dt,'D')) + mod(p_days,5) >= 7 then
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v_adj := 0;
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I am then calling the function to default a date field.
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Cheers,
Gart

Gart,
I ran your code -
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SYSDATE
24-JAN-06
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Today
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to_char(next_working_date, 'Day') as next_working_day
from
(select add_working_days(4, sysdate) as next_working_date from dual)
SQL> /
NEXT_WORKING_DATE NEXT_WORKING_DAY
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Hi,
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Hi, Niren,
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RETURN     DATE
DETERMINISTIC
IS
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Calculating work days in a function

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