Add Field To Table Then Check For Null

Feb 10, 2008

I need to add a Yes/No field to a table. I know I can do this in design view. Next I want to loop through the table and set it to Yes if certain fields are null. What I need help with is the VBA looping part and setting the boolean field to Yes if the fields being checked are null.

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Queries :: Form Field Return A Null Then Look At Field In Table

Jun 10, 2013

Trying to run a query using criteria to populate the query by looking at information from a field on a form, if from is closed I need that criteria to look at the table and return all date in table.

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Field Criteria: Is Null; There Are Null Values In That Field; No Records Are Returned

Nov 16, 2007

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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Modules & VBA :: Code To Check Contents Of A Field In A Table Where Another Field

Sep 11, 2013

I am trying create some code that checks if the contents of the status field in a table is "Authorised" where the ID = something specific for multiple records. If all records witht the specific ID are "Authorised" Then generate a new record in another table. Where to start, perhaps a Dlookup?

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Null ListBox Check

Oct 11, 2004

How (in VB) do you "check" to see if the user has selected an item from a listbox? I've searched the forums and tried everything I know and I keep getting: "Invalid Use of Null"

Any Ideas?

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'Null' Check Not Working!!

Oct 23, 2006

Hello,
I am putting a check whether the inputted value in a text box(txt_id) is filled or not. If it is 'null' then it should not execute the insert statement but somehow the check for the null value is not working. Can someone tell me why??

Private Sub cmd_inserer_Click()

If txt_id.Value = Null Or txt_id.Value = "" Or txt_id.Enabled = False Then
info = MsgBox("Veuillez remplir champ « Id »", vbInformation)

ElseIf txt_id.BackColor = &HFF& Or txt_libelle.BackColor = &HFF& Or txt_description.BackColor = &HFF& Then

info = MsgBox("Veuillez remplir tous les champs fausses!", vbInformation)

Else
MsgBox txt_id.Value
Set db = CurrentDb
strSQL = "INSERT INTO objectif ( id , libelle,description) values ('" & txt_id.Value & "' , '" & txt_libelle.Value & "','" & txt_description.Value & "') ;"
db.Execute strSQL
db.Close

Form_objectif.Requery

txt_id.Value = ""
txt_libelle.Value = ""
txt_description.Value = ""

cmd_ajouter.Enabled = True
cmd_modifier.Enabled = False

End If
End Sub

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Queries :: Check (and Get) Value In Other Table Field

Sep 18, 2013

I have one query (lets call i Q1) and I have two tables with identical structure.

Table 1:
- id
- iddesc
- comment

Table 2
- id
- iddesc
- comment

Table 1 consists of an imported xslx-file. The idea with Table 2 is to use it to edit content. Sometimes only one field is edited in Table 2 and in those cases i need to get the other values from Table 1. Q1 should (but doesnt) generate something like this:

Q1:
- id [always from Table 1]
- iddesc [from Table 2]
- comment [from Table 1]

My question: How do i, in a query, check if data exists in a field in Table 2 and if it does, add data from that field and not from Table 1?

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Modules & VBA :: Testing A Field In Table For Null Within IF Statement

Aug 30, 2013

I have a form with two list boxes on it: listAllBANANA and listActiveBANANA

The listboxes are populated from tblBANANA. Active is defined by the tblBANANA field "ResponseDate" being Null.

Also on the form is a CloseBANANA command button. When pressed with no selection, it opens frmCloseBANANA to the first record. If a BANANA is selected in listActiveBANANA, the form opens to the selected record.

Now comes the tricky part: if a BANANA is selected in listAllBANANA, I first need to verify they have an Active BANANA selected, before opening the form. I've poked and tested and searched and cut and pasted my little fingers off with no joy. What I've deduced is that I'm either messing up the syntax of the DLookup or I'm incorrectly referencing the selected record. There's also the third option that I'm going about this in entirely the wrong way.

All other code below works. If I delete or comment out the line in red, I have no issues other than I may open up a blank form because I'm trying to close a BANANA that is already closed.

Code:
'If a BANANA is selected in Active BANANA or All BANANA, open Close BANANA to that record. If not, open form to most recent record
Private Sub cmdCloseBANANA_Click()
If Not IsNull(Forms!frmGUI!listActiveBANANA) Then

[Code] .....

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Check For Values In Form Field To A Table

Mar 23, 2006

I'm certain this question has probably been asked before, but I can't seem to find it!

I have a form field called fldTitle, and want to ensure users write something that is meaningful by evaluating words within the title to a table of keywords (tblKeywords). I know how to write the IF/ENDIF and the other stuff required, but am struggling to find the right commands to do the comparision. Could someone help me out?

Many thanks.

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Modules & VBA :: Check Length Of A Field Value In The Table

Jul 29, 2015

I have a table that stores ID,PolicyNumber,NewPolNo fields.It has millions of records. The field NewPolNo is empty. I need vba code that will check the following for each record:

1. If the length of the PolicyNumber is over 14 characters long then store that PolicyNumber value in NewPolNo field.

2. If the length of the PolicyNumber is less than 14 characters long thenagain store that PolicyNumber value in NewPolNo field.

3. But if the length of the policyNumber equals to 14 digits long then check the following:

a) If the last 7 digits are 0's of that PolicyNumber. If yes then store first 7 digits in NewPolNo field.
b) If the last 7 digits are not 0's then store the whole PolicyNumber value in NewPolNo field.

We need to check these conditions for each record of the table.

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Reports :: Validation - Null Table Field Will Not Include In Report

Mar 30, 2013

I need to validate if a Field in my table is NULL, details of which will not be included in my report.

I attached sample report wherein the data is sorted by EXPIRATION DATE, first rows displayed the data of NULL EXPIRATION DATE FIELD ...

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Forms :: Populating Null Field In Form From A Different Column In Same Table

Sep 15, 2013

I've been trying to populate a field in a form with information, but only if the field is blank.

What I am trying to do is this.

I have a continuous form displaying all of our principals, however when our principals are on leave I want to populate the field with the "acting principal". I have set it up so the field grabs the acting principal first but it is blank for several schools. For these schools where there there is no "acting principal" I want it to grab the substantive principal automatically and populate the field.

I have tried Is Null, Is Not Null, NZ, IF, Where and Then statements but to no avail.

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Queries :: IIF With Null Included Field - Lookup Table Values

Jul 1, 2013

I am currently working on an instrument datebase, I have a mainquery that takes care of user inputs from a form. The main fields that have been queried on are Type, System, and Manufacturer and they are all look-up fields that contain some null values.

On the same criteria row for these fields, I have

Like IIf([forms]![User Interface].[qtype2]="","*",[forms]![User Interface].[qtype2])
Like IIf([forms]![User Interface].[qsys2]="","*",[forms]![User Interface].[qsys2])
Like IIf([forms]![User Interface].[qman1]="","*",[forms]![User Interface].[qman1])

qtype, qsys and qman are the user inputs from the user interface that returns look-up table values.

This works fine when all 3 of these fields are all filled out for a certain instrument. The problem arise when some fields of the instrument are left blank or is null. The instrument won't show up in a query at all. What I wanted it to do is to show everything including the ones with null fields when the user input are null or "". When the user specifies certain requirement I only want to show the ones that are not null. I understand that putting them on the same row means AND, I have tried to OR them and did not have the result i wanted.

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Queries :: How Filter Date Is Null Using Check Box

Jan 13, 2014

I have form that user can filter the records and generate a report but I have difficult trying filter null date.

If I have check box called filter null if it has a tick in I would like it only show records that have no value (is null) in field "date start" but if unticked I would like it to only show records with a date in field "date start" ...

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Reports :: Show If One Of Fields Are Null Or Not Check

May 1, 2013

how to run a report to show a Client if one or of the following fields are blank or unchecked(Yes/NO?

Fields
Client
Assessment Date(Null)
Placement Fee Paid(Check Box)(No)
TJ Completed(Check Box)(No)

So basically, if one of the above fields are null or unchecked, please show in the report. I'm sure it's easy but to do, but not up on coding.

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Access VBA Statement To Check For Null Entries

Jan 24, 2012

I've built a form on my Access database that invites a user to enter a start date and an end date into two textboxes. When i press a command button, a parameter query runs which uses the two textboxes as the parameter's criteria. However, to ensure that both textboxes have a data entry, i have tried entering in some VBA that prompts the user to enter in a date if its left null...then set focus to that textbox: Here it is...

If IsNull(Me.txtWeight1) Then MsgBox "You must enter a minimum weight!"
Me.txtWeight1.SetFocus
Else
If IsNull(Me.txtWeight2) Then MsgBox "You must enter a maximum weight!"
Me.txtWeight2.SetFocus
Else
If IsNull(Me.txtWeight1) And IsNull(Me.txtWeight2) Then MsgBox "You must enter a min and max weight!"
End If

This will not compile for me! I've tried with and End If and without an End If and other stuff. Why won't it work?

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Tables :: Setting Primary Keys To More Than One Field In Table / But They Cannot Have Null Values

Nov 30, 2012

Access 2010..One organization that we work with provides us with a block of numbers for each of the two types of contract products we order from them; we do order non-contract stuff from them also.The block of numbers are the same (i.e. 20000 to 30000 this year) for each of the two products. This means that each product can have the number 20000, for example. We call this the Tracking Number. If it is one of these products, we need to select the Contract Number.

For all other one off orders we have with them, we assign our own Tracking Number starting with 00001. This Tracking Number cannot duplicate unless it is one of the aforementioned two products.Both the Tracking Number and Contract Number are in the same table. The user selects the Contract Number from a form (connected to the Contract Number table that has all the details on the contract) and the Contract Number is populated in the same table that has the Tracking Number.Each order must have a Tracking Number (no null)..Not all orders need a Contract Number (null okay).The Tracking Number and Contract Number combination cannot duplicate.I tried setting the primary keys to more than one field in the table, but they cannot have null values.

If not... I have been working on Plan B.... an AfterUpdate on the form (either the form or a field... don't know yet) that looks at a query that only has results if there are duplicate values.

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Modules & VBA :: Check If Column D Value Is Present In Access Table Ref Field

Oct 14, 2014

I am designing a project in which there is a form and on that form there is a textbox and Browse button. With browse button you can select a file from the dialog box and that file path will appear in the textbox. This part has been done as below:

Code:
Private Sub CommandButton1_Click()
ChooseFile
End Sub
Sub ChooseFile()

Dim fd As FileDialog
Set fd = Application.FileDialog(msoFileDialogFilePicker)

[Code] ....

Now the next Part i.e Part2 in which we have to see the references present in Column D of the "Summary" worksheet of the workbook whose path is present in textbox1 and check if they match with any of the references in field "Ref" of the Access table named tblLiterature.

If value in column D matches with Ref field of the Access table then change the status field of the Access table to the corresponding columns A,B,C named as "Withdrawn","Obsolete","Updated". that means if the column A of the corresponding Reference is Y then change the status field to "Withdrawn". If column B is Y then change the status to "Obsolete" and if column C is Y then change the status to "Updated".

Please see attached the workbook as this kind of workbook will be searched against Access table .

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Queries :: Yes / No Field As Bookmark In Table With Names - Open To Last Or First Check

May 21, 2013

I have a yes/no field as a book mark in a table with names. How can I query it to open to the last or the first check?

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Modules & VBA :: Creating New Field In A Table With New Date - Result Type Is NULL Error

Sep 23, 2014

I'm new to programming with Access but am attempting to create a new field in a table with an new date based on existing fields in the table.

The current fields are [Frequency], integer, [Risk], text, [Last Audit Date], date/time, and the new field is [Next Audit Date]. [Frequency] is a calculated field based only on [Risk] and is equal to "5" if [Risk] is "Low" and is "3" is [Risk] is "Medium" or "High", and [Frequency] is blank if [Risk] is (thus far it has never been empty).

What I need the new calculated field to do is return "N/A" (or blank, or anything easily separated really) if [Frequency] is blank, or if [Risk] is "Low" or "Medium". If [Risk] is "High", [Next Audit Date] should be equal to [Last Audit Date] plus 3 years. When I try to save the code, I get this message: "The expression could not be saved because its result type, such as binary or NULL, is not supported by the server."

This is my code now:
IIf(IsNull([Frequency]),"",IIf([Risk]="Low","N/A",IIf([Risk]="Medium","N/A",IIf([Last Audit Date]="N/A","N/A",[Last Audit Date]+Year(3)))))

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Forms :: Nested IF Statement To Check If Input Box Is Null On Form

May 9, 2014

I have a form in my Access database that has 3 input boxes by which a user can locate a record by. The problem I am running into is that I can not get a nested IF statement to work properly to first check which of the search boxes are filled in and second search by whichever is filled in. I have come up with the following code that seems to be only searching by the first input box. If the first input box is blank it does not move to the second or third numbers so I imagine there may be something wrong with the order of my IF statement or the syntax is off.

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DLookup - Check If ID Matches Textbox It Works / However If Form Is Null It Doesn't Work

Mar 26, 2015

basically am creating a booking system, i have a add a room form. my form should check whether i already have a room number in my table, which works when the form is filled in. however when my form is null, then i press add new room button, i get this error rather than " please fill your form in"

Error: runtime error '3075' syntax error (missing operator) in query expression 'Room Number ='.

room number is a number field, integer but has primary key. i cant keep autonumber, as my requirement is to add new room number, but the roomnumber has to be unique.

here is the dlookup;

If DLookup("RoomNumber", "tblRooms", "RoomNumber = " & Forms!RoomPackages!txtRoomNumber) > 0 Then
MsgBox "This number already exists."
Else

p.s it unbound form

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Forms :: Make Image Appear In Form When There Is Check In Check Box From Table?

Jun 26, 2014

how can i make a image appear in my form when there is a check in the check box from the table?

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General :: Create Check On A Field (customer ID) Of Customer Table In MS Access?

Sep 7, 2012

create a check on a feild(customer id) of customer table in MS Access , as "Customer ID is of 8 characters, the first 4 are alphabets and the last 4 are digits"

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Make Field True If Other Field Is Null

Jul 10, 2005

Is there an expression in a query, that if want to say, if one field is not null make another field say true?

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Leaving Field Null Based On Another Field

Oct 15, 2005

I have a downtime database that tracks units down, time on, reason down, etc. When a unit goes down, I log the name of the unit and the time down in separate fields. When a unit goes back on line, I log the time on and the reason in separate fields. All this is in a form. When the unit goes on line, I want the user to be forced to enter a reason only after he has entered a time on, not before. The “reason” field must be left blank until the unit is on. How do I do that? I have searched the forum for this and have not found leaving a field blank based on another field’s data. I will supply whatever you need to help me. Thank you.

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