Date Criteria As NULL

Aug 16, 2006

I have a form with two controls: DateFrom & DateTo
I want to filter based on those criteria but when the criteria is ommitted (NULL) I want to display all.

In case of other controls I have an SQL as follows:
... WHERE (tblClassesOffered.Course = Forms!frmClassReport.class Or Forms!frmClassReport.class Is Null)

But with the dates controls the best I could come up with is:
...Between IIf(IsNull([Forms]![frmClassReport].[DateFrom]),#1/1/1900#,[Forms]![frmClassReport].[DateFrom]) And IIf(IsNull([Forms]![frmClassReport].[DateTo]),#1/1/3000#,[Forms]![frmClassReport].[DateTo]) Or Is Null

However that solution is kind of ugly becasue instead of wild cards (I couldn't make them work) I'm using those made up dates and I also wish not to use the IIF if possible (like the first statement).

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Feb 20, 2013

I have what I think is a simple query returning the names of students that have been dismissed since September 2012 using a "WithdrawnDate" field. The query pulls a lot of information from other related tables (about 6 different ones), and has two expressions.

When the criteria is set to either "Is Not Null" or a date range (which is all I need), it does not return the complete set of records based on the data that fits the criteria in the main table?

Could there be some sort of join preventing all records from being returned?

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Apr 3, 2008

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I think the title pretty much sums it up....

I have a query where data is first sorted by user input; first field's criteria: [fieldname], then by another field's criteria: Is Null.

I know there are records containing null values in the second field, as I have run a select query with the criteria: Like "*", to make sure they are null, and not zero-length-strings.

The query is refusing to return any results...

Any ideas?

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Mar 12, 2014

I have a form with Date of Death (DOD) field. I would like update DOD from a table dbo_patient into Z_Patients table.

I have set the datatype as Date/Time in the form for Date of Death.

Code:
Private Sub Update_DOD()
Dim rcMain As New ADODB.Recordset, rcLocalDOD As New ADODB.Recordset
Dim DOD As String
rcMain.Open "select distinct PatientKey from Z_Patients", CurrentProject.Connection

[Code] ....

However I am getting some error Run-time error '-2147217913 Date type mismatch in criteria expression in section below.

Code:
CurrentProject.Connection.Execute "update Z_MAIN_Processed_Patients set DateOfDeath = '" & rcLocalDOD!date_of_death & "' where PatientKey = " & !PatientKey

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Sep 12, 2007

I learned the criteria on this forum
Forms!FormName!Control or Forms!FormName!Control Is Null

It enables me to leave the text box on a search form blank to return all records. This seems to work but has a very odd behaviour.

In design view, I typed the criteria for 3 fields and saved the query, but when I reopened it, the criteria added 3 NEW COLUMNS and spread over 8 ROWS (as in the image attached.)

The SQL was even unreadable:

SELECT Table1.ID, Table1.FldA, Table1.FldB, Table1.FldC
FROM Table1
WHERE (((Table1.FldA)=[Forms]![Form1]![txtA]) AND ((Table1.FldB)=[Forms]![Form1]![txtB]) AND ((Table1.FldC)=[Forms]![Form1]![txtC])) OR (((Table1.FldB)=[Forms]![Form1]![txtB]) AND ((Table1.FldC)=[Forms]![Form1]![txtC]) AND (([Forms]![Form1]![txtA]) Is Null)) OR (((Table1.FldA)=[Forms]![Form1]![txtA]) AND ((Table1.FldC)=[Forms]![Form1]![txtC]) AND (([Forms]![Form1]![txtB]) Is Null)) OR (((Table1.FldC)=[Forms]![Form1]![txtC]) AND (([Forms]![Form1]![txtA]) Is Null) AND (([Forms]![Form1]![txtB]) Is Null)) OR (((Table1.FldA)=[Forms]![Form1]![txtA]) AND ((Table1.FldB)=[Forms]![Form1]![txtB]) AND (([Forms]![Form1]![txtC]) Is Null)) OR (((Table1.FldB)=[Forms]![Form1]![txtB]) AND (([Forms]![Form1]![txtA]) Is Null) AND (([Forms]![Form1]![txtC]) Is Null)) OR (((Table1.FldA)=[Forms]![Form1]![txtA]) AND (([Forms]![Form1]![txtB]) Is Null) AND (([Forms]![Form1]![txtC]) Is Null)) OR ((([Forms]![Form1]![txtA]) Is Null) AND (([Forms]![Form1]![txtB]) Is Null) AND (([Forms]![Form1]![txtC]) Is Null));


I don't know how to add the criteria for the 4th field.

Can someone help?

Thanks

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Me.Text11 = Nz(DAvg("[final whse-in diff]", "dbo_inventory", "[CAFETYPE]=" & Me.Text7 And "isnull(me.[DATE FIXED])=" & True And "isnull(me.DATE_IN)=" & True), 0)

I am getting a type mismatch error with this.

My question is:
1. is the syntax correct....
2. Is my way of checking for a value to be null correct....

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May 15, 2013

All. Using access 2010. I have a query that returns 92 records. When I put in the criteria for one field to leave out records with “approved” which totals to 9 records, the query only returns 10 records. It is not returning the records that are blank(not null) for that field. I want those records. Why is this happening and how can I get the blanks for this query?

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Mar 29, 2015

I had an issue with writing LIKE statements in query criteria yesterday [URL]....

The answer they gave worked perfectly when I only used a single table in the query. But as soon as I did an INNER JOIN with two other tables, now I get parameter value prompts when I open frmSearch, and instead of seeing ALL my records when the controls are left null, I get only the first record in the table.

Here's the SQL of the query, can you point out what I messed up? NOTE that this SQL was 'written' by Access.. as I used the Query builder to set all the 'Like or Is Null' statements, then clicked SQL and sorta formatted the code so I can see what I'm looking at (instead of superthick wall-o-code):

Code:
SELECT tblPeople.name, tblPeople.num
FROM (tblPeople INNER JOIN tblAddresses ON tblPeople.name = tblAddresses.name)
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[code]....

Basically, this is a searchable database of participants in a pet-adoption program, along with the participants' pets history and address history (hence the linked tables as opposed to additional columns in one single table for pets and addresses... there are more than one in some cases). The frmSearch allows a person to run quick searches based upon ANY item in the database, such as name, pets, addresses, pet age, pet type, county of residence, etc. I need to be able to pick ANY field on frmSearch and type a value, and have the qrySearch return records for ANY record's related column wherein any part of it matches what I typed.

The statements as written worked PERFECTLY right up until I added the INNER JOIN. Now I get a set of parameter value prompts for every field on frmSearch that's referenced in the SQL for EACH table I linked to tblPeople, and if I leave everything null and click Search, I want to see EVERY person, but I'm only seeing the very FIRST person in tblPeople.

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Sep 6, 2007

I have set up a report which prompts the user for a start and end date. However, if they want to run it for a full month they enter eg. 01/07/07 and 1/07/07 - this will not include entries ending on 31/07/07.

Is there a way I can change the criteria prompt so that it read both dates entered as inclusive in the query. I am currently using
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Mar 9, 2005

good morning all,
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If Me.quotedate = ????????? Then
Me.quotehow.Visible = True
Else
Me.quotehow.Visible = False
End If

I have done this with text fields where i have a defined data to be = to, but for a date field what do i put in ?????????? to show is not null?

Thanks
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Jan 19, 2005

Good day,

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Thanks

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Mar 27, 2006

So I went searching through the forums and found a thread that provided coding for getting the # of years and months from two dates:

Function fAgeYM(StartDate As Date, EndDate As Date) As String
'Purpose: Returns the difference between StartDate and Date in full years and months
'To call:
' ? fAgeYM(#1/21/04#, #1/19/06#)
'Returns:
' 1 years 11 months

Dim intHold As Integer


intHold = Int(DateDiff("m", StartDate, EndDate)) + _
(EndDate < DateSerial(Year(EndDate), Month(EndDate), Day(StartDate)))

fAgeYM = Int(intHold / 12) & " years " & intHold Mod 12 & " months "

End Function
------------------------------------------

That's perfect for what I'm wanting but I'm doing it with Hire/Term dates. So I want to be able to see how long past and present employees have worked in the company. Obviously that makes the Term field Null at times. With the coding above it requires a date to be in the EndDate field. How can I change it to allow for a null field in which the field would essentially be the current day's date? [Now()]

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If (DataErr = 2113) Then
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Case "DA_Start"
MsgBox "invalid date", vbExclamation
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I'm really lost on this one...
How do I find the # of days it takes to complete a task between two date fields.
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[DateRec] field is the field the app was first input to the database. [DateNumb] field is the date the first task was completed. So I understand,
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Nov 15, 2014

Error 1: Setting Date Field in Recordset to null

Error 1: Setting Date Field in Recordset to null " data conversation error 3421 "

Solution: If the field is null set it back to itself .

Here is a simple dummy example i wrote to demonstrate the solution ( look for the bold text in side the code )

Code:
Sub Event_btnSaveEndTime ()
dim strEndDate as string
With Form_frmMainForm
strEndTime = .txtEndTime.Value

[code]....

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Mar 5, 2014

I have two questions, both the same query.

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This is what I have currently in my query

CO_resp_rcvd (date field)

Criteria: Between [Start Date] And [End Date]

(I need null values as well because there will be some if the CO has not responded yet but needs to)

Formula:

This formula gives me the number of bus days from the Review Date - CO_Resp_Rcvd Date and that works but if the CO-Resp-Rcvd date is null, I need it to calculate Review Date - Today's date to show the number of days outstanding for those that have not responded yet in the same formula?

Not sure how to combine it to work - the wrapper is a bus day function

This is what I have so far in the query

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Sep 22, 2006

Hello guys,

Does anybode has any idea, of how to do that ? I can do it very easy in VB.NET, or C#, but in Access I give up.

So, I have to take data from the form , and send it to Sub.

With data type of String , I have no any problem, use Nz funciton, end everything, goes well.

But with Date and Integer, I can not find solution.

So :

Date

Dim PensionerFromDate as Date

PensionerFromDate = IIf(IsNull(Me.txtPDPensionerFromDate) = True, ????, Me.txtPDPensionerFromDate)

(instead of ???? i tried everything .. dbNull, vbEmpty, vbNull,sqldatenull, and somtimes it works but int the table stores "12/301899")

Integer

Dim CompanyID as integer
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I tried here instead of ????, tu insert "", ",," , " " , Cint("") itd. itd. . but nothing works.

Has anybody any idea ?

100 x thanks in advance

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I am new to Access. I am after a vba script to run an update query.

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The query is showing records where my field named Test1 is null.

I want to update records with null in the field to today's date (the date of the day that it is run) formatted as 18/08/2014 and the field next to it is named Updated (which is yes/no) from un-ticked to ticked for the updated values.

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