Queries :: Date Diff Expression
Oct 17, 2013
I am having a problem with a datediff expression.I have a query that pulls the first date and the last date out of a list but are put in seperate fields. I thought I could build an expression for datediff to calculate the number of dates between them. I can't just put in the dates because they are constently changing.The expression I have is:
[datediff("d",[min/max edging unit #2]![firstofupdate/time by month],[min/max edging unit #2]![lastofupdate/time by month])]
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Aug 7, 2014
I'm using the following function to calculate date diff in network days (excluding weekends)
Public Function NetWorkdays(dteStart As Date, dteEnd As Date) As Integer
Dim intGrossDays As Integer
Dim dteCurrDate As Date
Dim i As Integer
intGrossDays = DateDiff("d", dteStart, dteEnd)
NetWorkdays = 0
[Code] ....
So when using this function in a query to get number of networkdays between 2 date columns ...it works fine but throws a #Error where there is blank entries in either of 2 date columns...
I need to find a way to display Null instead of #Error...
I have tried this expression but no luck...
IIf(IsError(NetWorkdays([Date1],[Date2])),"",NetWorkdays([Date1],[Date2]))
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Mar 12, 2015
i have 2 tables.. 1 with bookings and 1 with a BonusPeriod range.
in the Bookings table there is a field called [ServiceDate]
in the bonus table i have a field called [Period] which is text i also have 2 dates, [StartDate] And [EndDate] i need to Dlookup the Bonus table to return the value of the period table based on where the [ServiceDate] falls.
i dont want to use VBA (i really need it to work within a query that inserts it's data into another table)
i've tried everything but had no joy
Expr1: DLookUp("[Period]","BonusPeriods","[ServiceDate]" Between "#[StartDate]#" And "#[EndDate]#")
Expr1: DLookUp("[Period]","BonusPeriods","[Staff_BookingsAndQuotes_Master].[ServiceDate]" Between "#[StartDate]#" And "#[EndDate]#")
Expr1: DLookUp("[Period]","BonusPeriods","(FormatDateTime([ServiceDate]),"yyyy-mm-dd") Between (FormatDateTime([BonusPeriods]![StartDate]),"yyyy-mm-dd") and (FormatDateTime([BonusPeriods]![EndDate],"yyyy-mm-dd"))))
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Jan 29, 2008
hi all
im looking at doing a query to check records for absense
the 1st will be checking if the person has been absense for 4 weeks (28days) so i will have to check from absense date to today does that equal or greater than 28 days but lesss than 91 days (13 weeks) and is the return to work date blank
is that possible???
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Nov 7, 2005
Hello,
I have a form on which I have places a textbox named txtDOB which stored a date of birth.
I have then another text box which has the following function:
=DateDiff("yyyy",[txtDOB],Now())+Int(Format(Now(),"mmdd")<Format([txtDOB],"mmdd"))
Is there a way I can show the age + months?
Thanks.
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Mar 19, 2008
Hello,
I am having problems creating a Exp to show the difference in time.
I am currently using :Expr1:DateDiff("n",[TimeReported],[TimeDefectGiven]) which is returning a figure in decimal.
If the answer was to be 90 minutes i need it to return the figure as 1.50 instead.
I have looked on the site using Date Diff and Time without success
Any help given would be great
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Sep 18, 2007
I have a date field, I am trying to have my query only pull the records that have a date entry that is within and up to 90 days from today or Now. For this query all other records are irrelevant.
THis is what I have found so far
=(Abs(DateDiff("y",Now(),[ls_Exp Date])))
Can someone show me how to add the 90 days in there?
Thanks.
Fen How
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Oct 11, 2007
I'm using the date diff .... DateDiff("h",[Start time],[End time]) in a query and then I report the results in a report. I have run into a problem for the first time. I had a start time of 7:00pm, and an end time of 7:00am. This was calculated in the query as (-12) which is messing up my cost formula.
How do I resolve this?
Jerry
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Apr 27, 2006
Here we go:
My overall goal is to find out a worker’s downtime (count of weeks between assignments)
I have a qry_Downtime that pull in a worker and his current and future assignment. Each assignment is associate with a start and end date.
Here is how the results look:
Employee (joe schmo)ProjectONE ProjectONEStartDateProjectONEEndDate
Employee (joe schmo)ProjectTWO ProjectTWOStartDateProjectTWOEndDate
Employee (joe schmo)ProjectTHREE ProjectTHREEStartDateProjectTHREEEndDate
Employee (joe schmo)ProjectFOUR ProjectFOURStartDateProjectFOUREndDate
Downtime would be defined the diff in weeks between ProjectONEEndDate and ProjectTWOStartDate, ProjectTWOEndDate and ProjectTHREEStartDate, etc.
Any suggestions.
T
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Jun 14, 2006
Friends,
I have a problem with a date diff calculation:
On my form I have placed two controls, a text box and a check box.
The textbox contains is a date field (mm/dd/yyyy).
What I need is a code that checks the checkbox if the date in the textbox is within the last 12 months.
This is the code I am using but not working:
If DateDiff("yyyy", textbox, Now()) >= 1 Then
Me.check1 = "yes"
End If
Any help? Thanks.
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Jan 23, 2008
Hi I have two fields one which represents the time participants went to sleep, one when they woke up however I dont have any dates - it refers to what they do usually. Is it possible to minus sleeptime from waketime to determine duration of time in bed without dates? Or do I assign dummy dates to use date diff function?
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Apr 8, 2013
I have a query that I want to "filter" based on a date derived from a Build statement (Expression). The Build statement works I can even sort by "Ascending".. But when I try to add a "Between [Startdate] And [Enddate] statement in the Criteria box, returns nothing".
Build statement : ReInvestDate: IIf([Eligibility]="SCI",DateAdd("d",+1825,[PrevInvestDate]),IIf([Eligibility]="TS",DateAdd("d",+1825,[PrevInvestDate]),IIf([Eligibility]="S",DateAdd("d",+3650,[PrevInvestDate]))))
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Feb 8, 2015
I am trying to count the amount of records that were created and closed for last month but I am having problems inserting the correct criteria along with the DCOUNT syntax. DCount("*","obsvnofilterqry","(Date_Closed)=MONTH( Date())").Works fine but figuring out how to get the amount of Date_Closed for last month is proving tricky.
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Jul 31, 2013
I'm trying to create an query that has two separate expression in it and a date selection criteria. The first expression is,
Expr1: DateDiff("s", [Arrival Time 1],[Departure Time 1])/3600
and the second is,
Expr2: IIf([Expr1]>[Hours Per Day],[Expr1]-[Hours Per Day]
When I run this query it asks me for the date (which is fine) but then it also pops up a box asking for "Expr1". How can I get "Expr2" to use the value returned from "Expr1"?
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Apr 10, 2014
I created a query with one expression field that updates a user inputted date field on a form. The expression adds a certain amount of time to the field (usually six months) so I know when the next inspection should take place. Everything works great except when I put a parameter in the expression field. It will not return the property dates. If I simply remove the expression, and input the date manually, it works just fine. Am I not allowed to use date parameter with an expression? It returns every date within the correct month, but will give me future years as well.
The expression is - NextInspectionDate: DateAdd("m",12/[InspectionFrequency],[LastInspectionDate])
The parameter is - Between [Forms]![Preventative Maintenance Dates]![Sta
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Oct 7, 2013
I am trying to create an expression to pull data from 2011 to present date. I need the data for 2011 to only reflect 1/1/11 through 10/7/11 (today's date in 2011). I need the same for 2012 and 2013.
I don't want to have to enter dates each time I run this, therefore, a formula would be preferred rather than hard numbers.
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May 31, 2007
Is there a way in a query I can add a Date Diff option to calculate the time between a date that is in the query and now?
I was trying something like this but no luck
=DateDiff("d", [DateToPerson], [now])
Thanks
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Dec 30, 2006
Could someone please help.
I have to fields in a form for a membership database that I want to relate to each other, 'date joined' and 'expires on'.
I have been trying to build an expression in the 'expires on' field that calculates the date which would be 12 months from the date entered in the 'date joined' field.
Can anyone please point me in the right direction.
Thanks
Adrian
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Aug 29, 2014
I have a query that I want to return "due by 9/8/14" if the [Grace] field is blank or if the date in that field is before 9/8/14. If the date in the field is after 9/8/14, I want it to return "valid through (the date in the field)"
I wrote: MedWords: IIf([Grace]=Null,"due 9/8/14",IIf([Grace]<9/8/14,"due 9/8/14","valid through " & [Grace])) and all I get is "valid through" and either blank, or whatever date is in the [Grace] field.
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Jun 10, 2012
I have a query with an expression as follows in criteria:
Between #1/1/2012# And #1/1/2012#
I want to pass into that expression a value from another table.
So, I created a table, DateRange, with fields StartDate and EndDate
Then, I modified my expression as follows:
Between [DateRange]![StartDate] And [DateRange]![EndDate]
Which, of course, didn't work, as the expression didn't know which 'row' to use.
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Apr 8, 2006
I one of my tables, I have a date field (DateCompleted) with the format: mm/dd/yyyy
Now, I want to create a query which would create another field (DateExpected) by using the date in the above table and adding 5 months to the date.
The only issue is that for the new field in the query I want it just to have mm/yyyy format.
For example, if the original date in the table is 04/05/2006, after running the query, I would have a new field 09/2006.
Does anyone know the exact expression I would put in the query? Thanks. The expression would be put in the "build" area.
Thanks for your help!!
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Nov 20, 2007
Hi,
I'm sure this is a very obvious question for someone, but not so much for myself. I just need a date range formula for a query. I want the query to ask me the start date and also ask the end date and pull up all dates falling in between.
Anyone know a formula?
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Mar 11, 2006
Hello people - I am building an APPEND and DELETE Query which deletes STUDENTS in my Camera Loans database who have not borrowed a camera in more than two years.
In the query structure, under DATE_BORROWED, I put the expression <=Date()-730 (where 730 = 365 days x 2.)
However, upon running the query it gave back to me the earliest loan date of the student, (so their first loan date and details basically)
It ignores the more recent loans, so deleting this appended record would be a mistake.
Now I need an expression in a duplicated DATE_BORROWED field in the query structure that picks out the most RECENT date out of them all, the other field running the check on this most recent date to see if it is older than two years.
Surely there is some code or expression that pulls the most recent date out only of a whole series in a record? Or a criteria is performed on the rmost ecent loan only?
Help appreciated, thanks.
Neil.
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Sep 4, 2006
Hi all,
I need to be able to add x months to a given date which I'm using in a criteria expression. I've figured out that I can just add y number of days, but the answers aren't quite accurate across different ranges of months.
I'm after something like
<[BeginDate] And >([BeginDate]+[3months])
but I haven't turned up anything useful in an hour of googling - finding it difficult to define what I want in search engine terms.
Cheers,
Alex
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Feb 19, 2008
I want this expression to form a value of a field on a query...
I know that what I want is something like this:
arrangedActivityName: [activityDate]+", "+[activityTime]+", "+[activityId]+", "+[venueName]
When I do it though, its shows "#Error" in the field.
I'm guessing that its something to do with the fact that date and time are not strings or ints therefore cannot be displayed. How can I fix this?
Does anyone know how I can do it?
Thanks, Ant...
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Feb 7, 2005
So I have a database of contacts, and it has their birthdays listed as well. What I need to do is calculate the number of Fridays from their birthday up until today's date. How do I do this? Thanks
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