Access :: QBF Problem Returning Null Entries

Query With Is Null Returning Not Null Records

Apr 18, 2006

Hello all,

A bit of a weird one, I've got a query and the criteria for showing records is that one particular field is null. However the query is showing records with the values in the field chosen for the Is Null.

Not sure why this is happening, has anyone come across this problem before?

Thanks.

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Returning Null Records?

Jan 14, 2008

Hello everyone.

I have just joined the forum and spent the last day or so looking around for an answer that I wasn't able to find.

I have been asked by my employer to capture details of who has signed our confidentiality policy. I have made a very simple database which only has three tables, EMPLOYEE, POLICY and VERSION.

EMPLOYEE has three fields, NAME, NUMBER and BRANCH. POLICY has three fields, NUMBER, DATE and VERSION. VERSION has two fields, VERSION NUMBER and DATE. I won't worry about the VERSION table any further in this post as it doesn't figure in the problem query.

Primary key for EMPLOYEE is NUMBER. Compound key for POLICY is NUMBER and DATE (ie. the employee can sign the policy more than once and we want to record when this was, and whether the policy version changed).

I have an Access "type 3" join defined in table relationships from EMPLOYEE.NUMBER to POLICY.NUMBER.

I am trying to write a query that returns the employees that haven't signed the policy. I have no problem returning the employees that have (ie. employees whose numbers match the numbers in the POLICY.NUMBER field), but it is the EMPLOYEE.NUMBER entries that are not present in POLICY.NUMBER that are causing me grief.

I have tried using the expression builder in the query builder window (it gave me <>[tblPolicy]![Number]) which doesn't return any records (I have over 490 in the database and should be getting back at least 50 or so).

Sorry if this question is too basic.

Can anyone offer me any advice here?

Thanks in anticipation.

John

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Query Returning #error When It Should Be Null

Jun 24, 2005

I have a left-join query where I know that some of the values in the left-hand table have no corresponding values in the right-hand table...that's why I used a left-join: I want all the values in the left-hand table to show up. I would expect that records without corresponding values in the right-hand table would show up as nulls (I swear I have dozens of other queries that work this way) but in this one, they show up as "#error" instead.

This is a problem because I want to do some calculations on this field. Normally I would use the nz function to change the nulls to zeros.

So,
1. Any idea why this is happening?
2. Is there a way to change the #error values to zeroes, similar to using the nz function?

HEre's the SQL:
SELECT FeederInventorySummary.machine, FeederInventorySummary.Size, FeederInventorySummary.Leaf, FeederInventorySummary.Type, FeederInventorySummary.CountOfFeederID,FeederNeeds Summary_7.FeederQty FROM FeederInventorySummary LEFT JOIN FeederNeedsSummary_7 ON (FeederInventorySummary.Type = FeederNeedsSummary_7.Type) AND (FeederInventorySummary.Leaf = FeederNeedsSummary_7.Leaf) AND
(FeederInventorySummary.Size = FeederNeedsSummary_7.FeederSize) AND (FeederInventorySummary.machine = FeederNeedsSummary_7.ActualMachine);

For every record without a corresponding record in FeederInventorySummary_7, the FeederQty field shows up

as #error.

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Returning Null Or All Records In Query

Nov 21, 2005

Depending on the answer of a question, i would like to get the records that have no data in that specific field, otherwise i want the query to give me all records.
I've tried this in "criteria" but it doesn't work: IIf([Question? J/N]="N";"Is Null";"")

Who can help me?

Thanks
Fred

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Queries :: Returning A Blank Or Null Value

Jun 18, 2015

In a query, how do I return a blank or null.

IIf([Field1]=[Field2],NULL,[Field3]

They are all numerical values that I need to format into percentages however Field3 could contain zero so I can't replace Null with zero. I simply want to return nothing if Field1 is equal to Field2.

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Query Not Returning Null Values

Oct 10, 2011

2007 version - my child query is not returning null values. I have 2 fields, both pulled from a parent query. One is "DaysSinceRecd", the other is "AmountPaying". The parent query returns multiple results, which is fine. For example, the parent query might have 10 different records for "0" "DaysSinceRecd", with different "AmountPaying" for each of those records.

In the child query, I am trying to condense that down, so that I only have one "AmountPaying" for each "DaysSinceRecd". It's working fabulously, except that there are records in the parent query that have a value for "AmountPaying" but a null value for "DaysSinceRecd". The null value for "DaysSinceRecd" cannot be changed to another value, it needs to stay null. My child query is not returning the null records. I tried adding to the criteria: IsNull Or IsNotNull, >=0 or <=0. That's not working.

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ComboBox Querying Table, Returning Null ?

Aug 8, 2005

Is anyone else experiencing similar problem ?

Basically here's what happen:

1. User need to look up item name, while in a subform. He pressed F5
2. A form showed up, with a ComboBox (which got its values from a query)
3. User chose an item name in the ComboBox, and then pressed the Close button
4. The item name got copied into the subform.

Problem is, for some items/records, step 4 doesn't happen :eek:
When I investigated, turned out that for some records, the ComboBox returned null (instead of the selected record)

This is on a 5800+ records table, on Access 2000.

Here's the code :

[Forms]![005_cashier].[subform_0051_enter_sold_items]!selling_price = Me!item_name.Column(2)
[Forms]![005_cashier].[subform_0051_enter_sold_items]!quantity = 1

The second line always works (always got copied to the subform properly), while the first one only works with certain items/records.

I've examined the offending records, but couldn't imagine how they'd be able to make Access to behave like that.

Any ideas ?

Thanks,
Harry

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Returning All Records If Dependent Field Is Null

May 14, 2007

Hi. I'm unable to work out how to set up a query which will filter records according to what is returned by one control, but will also list all records if the value of the control is null.

Situation: I have a CONSULTATION table linked many to many via a CONSULTATIONLIST relation table to an ADVISOR table. (An Advisor may be present in any number of Consultations, and a Consultation may include any number of Advisors.)

I have a CONSULTATIONMANAGE form enabling the user to select an Advisor from the table ADVISOR via a combo box called SELECTADVISOR which returns Advisor ID (adID).

My CONSULTATION form, displaying the list of consultation records, currently has, as record source, the following query:

SELECT Consultation.*, Advisor.adID
FROM Consultation INNER JOIN (Advisor INNER JOIN ConAdList ON Advisor.adID = ConAdList.adID) ON Consultation.conID = ConAdList.conID
WHERE (((Advisor.adID)=[Forms]![ConsultationManage]![selectadvisor]));

This query correctly lists only those Consultations in which the selected Advisor was present.

Problem: What I also need to do is show ALL Consultation records if the user does not select an Advisor from the combo box.

Any help would be much appreciated.

Mat.

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Query Not Returning Records When Criteria Set To Is Not Null Or Date Range

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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WildCards Referencing Null Entries

Jun 24, 2005

I have a Qry that has a criteria of

Like "*" & [Forms]![FrmSearch![Cmbo1]

However on this field there are null field entries and even if the cmbo box is null it wont display these results.

I tood out the & [Forms]![FrmSearch![Cmbo1] section and just left the wild card and again only displayed the records where this field had an entry.

How can i get it so that when no selcetion has been made in the combo box all the records show up.

Many Thanks

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Queries :: Query With IIF And Null Entries

Jul 29, 2013

I have a form that feeds information to a query which in turn sets up a report. For clarity i will list out in basic terms what I have

Input Form
- Check Box to activate/De-activate a text field [chk-active]
- Text field for a parameter [txt-Parameter]

the query has a column that has null values from the originating table. These values will be added a t a later date, but need to be queried and reported at some business intervals.

In the query criteria for this column, I have the following Criteria

Like IIF([Forms]![ReportGenerator]![chk-Active]=0, "*", [Forms]![ReportGenerator]![txt-Parameter])[/I][/I]

I have tried for the last 5 hours to figure out how to write the formula to be able to get the blank entries to show up as well but have had no luck.

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Replicate Missing Data Into Null Entries

Nov 15, 2005

Hi there

I have some a little programing in microsoft access vb and so I am here asking for advice.

I need to copy a data value from one field down the list of null entries till it reaches the next value and then use that an so on in a loop.

E.G
[Area Code]
199a
null
null
null
null
132f
null
null
null

Regards

Luke

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Queries :: Listing Null Entries In A Second Table

Jul 31, 2013

I have a Membership List Table with a calculated field entitled Member Name.

The second table entitled Groups contains only 46 records each of which has up to 30 Fields also containing member names.

I Have written a query to establish which of the members from the single field of the first table do NOT featured in any of the fields and records of the second table. In the Query Design View I have listed 'Member name' from Table 1 followed by all the relevant member fields from Table 2, carrying the criteria 'Is Null'.

When I run the query, it merely lists all the members from Table 1.

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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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Creating Two Tables - Old Entries And Weekly New Entries?

Mar 13, 2014

I have a table in access which is updated weekly; I need to create two tables from this updated table.

1st table will consist of all the new entries for the current week

2nd table will consist of all the entries from the previous week - an amalgamation of all the entries which are not from the "current week" (table) For example; the table below shows the two entries from last week.

ID
Name

1
Adam

2
Ben

This week I have three new entries New entries

ID
Name

3
Charles

4
Richard

So when I run the same query next week I will get something like this.

Old Entries
ID
Name

1
Adam

2
Ben

3
Charles

4
Richard

[code]....

How do I get a query /queries which divides up the weeks new entries and also all the old entries.

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Modules & VBA :: Switch Function - A Null Makes Whole Column Null

Nov 16, 2014

I do not understand what is happening here. I have foll0wing line in a calculated query field:

m: Switch([EmpID]<5,1) ' run Query 18 in attached example, A2007/2010

this produces 1 for all EmpID<5 and Null for all other EmpID's. All as expected.

But if I do this:

m: Switch([EmpID]<5,1,[EmpID]>=5,Null) ' run Query 19 in attached example

then the entire column is set to Null

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Modules & VBA :: Invalid Use Of Null With No (obvious) Null Values

Jul 5, 2013

It might be an easy one but I just wasted the past hour deciphering through my code in order to solve the run-time error '94' that I'm getting when trying to execute the following code:

Code:
Private Sub cmdUpdateDates_Click()
'###################################
'This sub aims at combining the timesheet date and the start and end time into the fields [Start Time] and [End Time].
'###################################
Dim intCounter As Integer
intCounter = 0
Dim rs As ADODB.Recordset

[Code] ....

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Combo Criteria If Not Null Or Is Null

Apr 3, 2008

I am having problems with setting up a set of combo boxes.

What I am trying to do is if combo Productline is empty then in combo PartNumber would show all products but if combo Productline has a value selected then in the combo partnumber would only be able to select the partnumbers in that productline.

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Invalid Use Of Null ? How To Assign Null

Nov 16, 2006

Hi, I have some problem with assigmnet with date and string variable. what i wana do is get data from Forms textboxes into variable and then by insert query send to history table.

the problem occurs when there is blank textbox its says invalid use of null.

e.g
myStringVariable = Forms!myform!EmpName
myDateVariable = Forms!myform!EmpDOB

this code is behind the update button which i press when ever i want to shift data to History table

so when the fields are empty the invalid use of null error arrise

any idea how to handle this null specially in date

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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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Returning More Than Max

Mar 28, 2006

People
-----
Name
Number
Type

Notes (1 to many relationship with People table, based off Number)
-----
Number (lookup to People table)
Note
Date

I need to take all people of a certain type whose newest note is more than 6 months old. Here's what I have so far (it doesn't take into account the "more than 6 months old" part). Notice that I have the GROUP BY because of the MAX() in the outside SELECT statement:
SELECT [App Info].[First Name], [App Info].MA, [App Info].[Last Name], [App Info].[Soc Sec #], [Note Info].Note, Max([Note Info].[Eff Date]), [App Info].[App Type]
FROM [App Info] INNER JOIN [Note Info] ON [App Info].[Soc Sec #] = [Note Info].[Soc Sec]
WHERE [App Info].[App Type] Like 'Apprentice*' AND [Note Info].[Eff Date] in (SELECT [Note Info].[Eff Date]
FROM [Note Info]
WHERE [Note Info].[Eff Date] Is Not Null)
GROUP BY [App Info].[First Name], [App Info].MA, [App Info].[Last Name], [App Info].[Soc Sec #], [Note Info].Note, [App Info].[App Type];

Problem is, it's returning multiple notes for a given person.

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Returning More Than One Row

Dec 9, 2005

The snipet below returns only a single record. I want all the records. I am not sure how to get the results from the query or the syntax.

This is what I want:

Select location from client_loc
where clientID = FORMS!job.ClientId

Thanks
---------------------------------

Private Sub ClientId_AfterUpdate()
GetValidLocations
End Sub

Private Sub GetValidLocations()

Dim varName As Variant ' declare a variable for the name

' Check if either combo box is null
If (IsNull(Me.ClientId)) Then
varName = ""
Else
' Look up the title
varName = DLookup("[Location]", "client_loc", "[clientID] = FORMS!job.ClientId")
End If

If (varName = "" Or IsNull(varName)) Then
Me.location = "(None found)"
' Otherwise, put name into the text box
Else
Me.location = varName
End If

End Sub

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Returning A Date Value

Apr 21, 2007

Hi All,

I have been working on this problem for hours, but I keep hitting a brick wall!

Basically, whatever date is entered in [field1], I want [field2] to return a date of the 15th of the following month. For example:-

01-02-2007 = 15-03-2007
31-08-2007 = 15-09-2007
23-12-2007 = 15-01-2008

Thanks in advance,
Paul.

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Returning 0 Values

Jul 20, 2007

Hi anyone!
I have a table that tracks data for parts across different depots. Thus some depots might not have records for a part in a particular depot whilst others do on a given day. My table does not record a 0 value for parts in a dept that don't have a part on a given day, it simply does not record anything.

I would like to query all depots and have it return a 0 value where there are no records on a given day for a given part in that depot. Does anyone know how to do this? i.e. if no record return 0 as default.

Does anyone know how to do that? At the mo my query simply exlcudes all records on taht day for all depots?

Thanks in advance

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Select Not Returning Any Value

Nov 29, 2007

Hello!

My problem is the following:

My select works fine when I select 3 fields, but trying to select more than three, when I add two fields more, it doesn't give me the last two fields, being these two fields added lattely in the table...

I mean... I added two fields more to the table one it was created, and the script executed.
After that, if I try select * from table, the recordset does not have this two fields... only the old ones...

Any idea?

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