Crosstab Query And Nulls

Oct 25, 2005

In my Accounts table I have a field called Status. This field is populated by single letters. A=Active, P=Paid and so on. I have a status (R) that is occasionally used. It won't show up in my crosstab queries since we currently do not have an account that is in R status. How can I get my crosstab to show the R status as having 0?

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Nulls In Crosstab Query

Dec 24, 2005

I've been struggling with a problem and I hope one of you can please help.

I created a crosstab query that displays group names on the vertical axis and dates on the horizontal axis. I use a Count for the values. I use a pop-up dialog to get parameters for the dates (between... and), which are organized as Quarters. The query works fine and I can insert it into a report, which also works fine... with one problem. The dates only work when the date parameters request a year (4 quarters), and only work when each quarter has at least one entry. (Only work = I get an error message when one or both of these conditions are violated.)

Sometimes, I want to look at less than a full year, but when I use parameters for three or fewer quarters, I get an error. Same thing if I request a quarter that doesn't have any data. I assume the solution is to convert Nulls to Zeros and have wrestled with both Nz function and IIf, but have not been able to convert the values. I get the correct values in the quary's dataset if they are numbers, and blanks if no data, but no zeros anywhere. I also don't know how to make my report flexible or dynamic, so I can limit the number of quarters if I only want to look at a specific quarter or quarters (less than four).

Any ideas? Thank you so much for your time, and, Happy Holidays!

Stu

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Cross Tab Query Nulls

Feb 7, 2008

is there any way to make a cross tab query default to zero instead of nulls for unpopulated cells

i know i can Nz all the resultant fields, but it seems like treating the symptoms and not the cause...

:confused:

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Append Query And Nulls

Feb 7, 2008

So, I've been doing doing reading on Append Queries and Nulls. I have the following SQL statement


INSERT INTO tblTestResults ( EnrollmentID, TestType, Result, CompletedDate, BoldFace )
SELECT tblEnrollment.EnrollmentID, tblTests.TestsID, [Forms]![frmHome]![subfrmTesting]![txtResult] AS Result, [Forms]![frmHome]![subfrmTesting]![txtCompletedDate] AS CompletedDate, tblOptionsBF.OptionsBFID
FROM tblEnrollment, tblOptionsBF, tblTests
WHERE (((tblEnrollment.EnrollmentID)=[Forms]![frmHome]![EnrollmentID]) AND ((tblTests.TestsID)=[Forms]![frmHome]![subfrmTesting]![cboSelectTest]) AND ((tblOptionsBF.OptionsBFID)=IIf(IsNull([Forms]![frmHome]![subfrmTesting]![cboSelectBF]),0,[Forms]![frmHome]![subfrmTesting]![cboSelectBF])));


and I can't for the life of me figure out.


IIf(IsNull([Forms]![frmHome]![subfrmTesting]![cboSelectBF]),"",[Forms]![frmHome]![subfrmTesting]![cboSelectBF

Basically what I'm trying to say is that if the cboSelectBf is Null, then leave it null for the the append query or at least leave it blank. If it isn't, use the value that cboSelectBF has according to the combo box selection.

Any help would be greatly appreciated.

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Crosstab Query Based On Crosstab??

Sep 21, 2007

Hi all, I am utterly unsure if what I want to do is even possible:

I have two crosstab queries, qryRewCOCredit and qryWrapCOCredit which show the changeover (CO) times for the specified machine when they are NOT zero. (all zero entries don't show up).

There are many cases when there is a CO for the Rewinder on a specific day, but not for the Wrapper, and vice versa.

I want to make another crosstab query which performs a calculation. To keep it simple:

If (RewCOCredit>WrapCOCredit) Then
5-RewCOCredit
Else 'WrapCOCredit>RewCOCredit
5-WrapCOCredit

Please help!!!

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Nulls

Nov 15, 2005

Hi there,

I have 4 fields in a table(Call_Freq, Call_Week, Call_Day, Call_Sequence)

I have to make a query that finds records with Null values in these fields.

If they are all null that is fine so I only want to return records with either one, two or three of the columns with Null values.

Any help would be appreciated.

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Help On Nulls

Feb 15, 2007

Hey guys,

I'm doing a pretty basic query that

Selects about 5 fields
From Table1
Where

(value=0 AND name <> HOT)
OR
(value=Null AND name <>HOT)

I also have some records (4 specifically) that have a name = nullvalue. When I run this query it picks out all the records with a name, and skips HOT(which is correct), but skips the nulls which I also want to include. Can someone help me in finding the reason for this error?

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Cannot See Nulls

Feb 23, 2005

I already posted this problem in the query section, but got no where with it... here is the problem now...

I have a form with three combo boxs - cboStatus - cboFunder - cboResource on my form. Depending on what you chose as an option the subform, which is based on a query will show the data with the chosen criteria.

Only the Status field is a required field, so there are lots of nulls in the funders and the resource fields.

In the all the fields I have "ALL" or "*" as an option.

So in the criteria in the query I use this...

Like fCboSearch (forms!form name!combobox)

This calls up this function...

Public Function fCboSearch(vCboSearch As Variant)

If IsNull(vCboSearch) Or vCboSearch = " " Or vCboSearch = "*" Then
fCboSearch = "*"
Else
fCboSearch = vCboSearch
End If


End Function

This works great to show me all the records or just records with a certain criteria selected, BUT BUT BUT I cannot get it to show my the NULLS, they are no where to be found. How can I change this to show me NULLS??

Thanks. Joye

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Update Nulls With Max+1

Jul 7, 2005

I have a table which records are appended to in batch format. I would like to update a column called batch number for newly appended records with the Max of that column + 1 but I keep getting errors such as "operation must be an updateable query". Anybody have any suggestions. Mind you I am not doing this in VB or SQL formats, I use the query design format. Thanks, Jim

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Trouble With Nulls

Jan 2, 2006

hi,

i am having trouble with a criteria expression that seems to have an issue when it runs into null data in my table.

the query column is as below ...

DateSerial(Year([SomeDate]),Month([SomeDate]),1)

and the criteria for this column is ....

DateSerial(Year(Date()),Month(Date()),1)

So basically I am looking for those fields that match the first date of this current month.

for some reason when there are null values in the table this thing chucks back data type mismatch error but when i take the criteria away its all good

any ideas why this is happening?

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Nulls And Zeros In Calculations

Sep 20, 2006

So, I have two tables that, cut down, look like this:

Table1:
Code budget
100 5
110 7
120 3
150 6

Table2:
Code actual
100 4
110 9
130 2
150 1

I have another table that is all the codes plus a description.

I thought I was being clever because I realised that there are items in Table1 that do not appear in Table2 and vice versa. I need a query that is, in effect, Table1 minus Table2.

I linked all three tables via “code”, created my query with the minus calculations and thought it had worked.

One problem. Where there is a “code” in one table but not in the other, the query puts a blank or “null” into that field. Then the minus calculation gives, say:

null - 2 = null

I’m used to Excel where:

blank - 2 = -2

Is there any way to get round this please? This must be a common problem, no?

Thank you.

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Option Group Nulls Out

Feb 7, 2005

Will someone look at my option group in my form (frmcustomer) and help me figure out why the option group selections for existing records nulls out (visually you cannot see which button had been previously selected).

The option group is working fine in that it is adding the appropriate selection to the record, but when you open the form up in edit mode the selection has been grayed out.

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How To Handle NULLS In MS Access

Nov 4, 2014

I have below table in SQL Server which i have linked to MS Access 2010.

Create table test
(
col1 int not null
col2 int not null
)

Insert into Test values (1,2)
Insert into Test values (1,'')

Now when i link the table to access database and open up the table i dont have any issues with that. I tried to copy the test table data from access table and paste it to another access table which is linked to sql server with same schema structure thats when it says "You tried to assign the NULL value to a variable that is not a variant data type"..Its treating the blanks as NULLS when copy/paste the records from one table in access to another.

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Sum Of 2 Columns In SELECT Including NULLs

Oct 5, 2005

Hi!
I want to add two columns a and b. However, there are rows in which EITHER a OR b is NULL. This should be handled as if the cell would be zero. Is there any way besides filling in 0s in the tables?

I tried
SELECT a, b,
IIF( a = NULL, b, IIF(b = NULL, a, a+b))
AS c FROM

but this doesn't work.

Any ideas?

Cheers
Tom

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Queries :: Replace Nulls With Zeros?

Aug 13, 2013

In the following simplified query, in some months(MonthOf) there were no warranties so I have a null field for AcceptedWarranties:

SELECT qryWarranty.MonthOf, qryWarranty.AcceptedWarranties
FROM qryWarranty;

In order to make my Warranty Trends graph work I need 0s. Other postings show the following statement should get the results I need:

SELECT ISNULL(AcceptedWarranties, 0 ) FROM qryWarranty

But no matter how I try to work this into the original code, the compiler finds reason to reject it.

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Tables :: Averaging - Excluding Zeros And Nulls

Sep 16, 2014

I'm using Access 2010 and I'm a novice with databases.I have a table that contains water flow readings taken 4 times a day from multiple wells. I am trying to create a select query that will generate the daily average of the 4 flow readings.

HoleID.....Date....Flow1....Flow2....Flow3....Flow 4....Average
1111.....9-8-14.......0.........null.........7..........4......
1111.....9-9-14.......0.........null.........9..........3......
2222.....9-8-14.......0.........null.........10........7......

Also, my table also has several 0 values and NULLS meaning the well was turned off - I want to exclude the zeros and nulls when I average. How to average these numbers? Do I need to restructure my table?

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Queries :: Excluding Records - Keeping Nulls

May 2, 2013

I have a table of around 6000 records comprising 4 fields (A,B,C,D).

- Each field can contain numbers or Nulls.
- Each record can comprise all numbers, a mixture of numbers or Nulls, or all Nulls.

I'd like to build a query that excludes all records that contain any number from a small list of numbers.

This sounds very simple but I am having problems when trying to include records that have Null's in my query output.

For test purposes I tried to exclude all records that contain the numbers 1 or 9 (these numbers can be present in any field).

This works perfectly, in isolation, on Field A (i.e. 1 or 9 but not Null are excluded from field A):

Code:
WHERE Table.A Not In (1,9) OR Table1.A Is Null;

When I try to copy the above, referencing fields B-D, I run into problems - no matter how I try to alter the Boolean operators.

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Converting Text Dates To Integer With Nulls Present?

Mar 18, 2013

I have a text field like, 11242010, and I need to be able to convert it into 3 int fields, day, month, year. I am trying to do this in a query and have create the following three;

DateD: IIf([DATE] Is Not Null,(CInt(Left(Right([DATE],6),2))))
DateM: IIf([DATE] Is Not Null,(CInt(Left([DATE],2))))
DateY: IIf([DATE] Is Not Null,(CInt(Right([DATE],4))))
Time: IIf([TIME] Is Not Null,[TIME])

When I have a value of Null, i keep getting #Error, I think when it's null.

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Blank Fields In Crosstab Query Based On Previous Query

May 31, 2006

:confused:
I am trying to help someone with a complex problem (so it seems to me) but I will first ask about what should be a simple thing....

First goal: to COUNT the number of times a TYPE of visit is made.
There are several different TYPEs but only interested in tracking 2 of them.

When a crosstab query is created - if one of the 2 parameters are not "met", a blank is returned. I have been reading posts about using NZ and IIf IsNull, etc to get past that - but none of them make any sense to me and the Access help suggestions do not work. Hope someone can make it clear with this information: (can't give more specifics to keep privacy intact)

The SQL was written by Access not by me. :)

Here is an example of the Crosstab SQL (which is using a previous query):

TRANSFORM Count([qryTest2.TYPE]) AS CountOfTYPE
SELECT qryTest2.CID
FROM qryTest2
GROUP BY qryTest2.CID
PIVOT qryTest2.TYPE;

-----------
qryTest2 SQL: (Grouping by to remove dups)

SELECT DISTINCTROW tblM.CID, tblM.[M#], tblM.LNAME, tblM.FNAME, tblM.YMDBIRTH, tblC.ClDOS, tblC.TYPE
FROM tblM LEFT JOIN tblC ON tblM.[M#] = tblC.[M#]
GROUP BY tblM.CID, tblM.[M#], tblM.LNAME, tblM.FNAME, tblM.YMDBIRTH, tblC.ClDOS, tblC.TYPE
HAVING (((tblC.TYPE)="Out" Or (tblC.TYPE)="In"))
ORDER BY tblM.CID, tblM.LNAME, tblM.FNAME;

Thanks for you time! :)

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Queries :: Query Error When Data Changes In Crosstab Source Query

Aug 12, 2014

I have a database which among other things records how jobs are received i.e.: Telephone, Email, Mail, Facsimile or Web.For each client I want to identify the percentages of each method of receipt against the total of jobs received and during different time periods.I have created a make table query for all jobs received between variable dates for a client entry of the name of the client and the start and finish dates are required to run the query.

I have a crosstab query set up to count each method of receipt and a final query to work out the percentages using the total from the crosstab query fields divided by the total of all methods.I have a macro set up to replace the table with new data when I want the stats for a different client between new dates, therefore the different methods of receipt may vary for the less active clients i.e.: they may only have telephone and email .

My problem is if I choose a client where we have not received a job by a particular method (say web or facsimile), the last query working out the percentages has fixed names to cover each method but naturally produces an error when it cannot find a corresponding method of receipt. I have experimented with NZ() without success.My question is can I either have preset standard names of the column field in a crosstab query? Alternatively in the query calculating the percentages, can I include code to ignore a non-existent field in the crosstab query.

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Crosstab Query

Aug 17, 2005

Hello All,
Your Help Required. I have send you a Database, in which I have used Crosstab query, I just want when I select the report from switchboard, and enter the datefrom / dateto (fields names) than click the preview report. Required report is open.

I have faced following problems
1-When I have selected the report and click the preview button. Report is not opened.
2-I have used cross tab query and link with the switchboard. But when I have run the query this msg is appeared “Microsoft Jet engine Does not recognized these field(name)”

Thanx
ami

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Crosstab Query

Sep 23, 2005

I am am wondering if it is possible to create a crosstab query that displays alphanumeric values and not numeric (computational) values.

Ex:
Table contains the following details:

Name Branch
Bob 111
Bob 222
Joe 333
Pam 444


I want to use a crosstab so I can view the data as follows:

Name Branch1 Branch2
Bob 111 222
Joe 333
Pam 444


Is this possible? I've been playing around with it and it doesnt look doable. Perhaps there is a better way of getting the data into this format? Any suggestions would be greatly appreciated!

Super Thanx.

O.

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Crosstab Query

Oct 2, 2005

Hi all

I'm trying to create a crosstab query with criteria that refers to a combo box on a form to allow me to filter data before the query is created. However when I refer to the combo box (e.g. = forms!frmSite!CmbSiteName) I am told that access does not recognise this as a 'valid field name or expression'. With a normal select query I dont have the same problem. Is there a way around this?

Cheers

Rhys

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Crosstab Query

Oct 4, 2005

Hi, I have a crosstab query I have set up, calculating the cost of a product per month

it should look like
1 2 3 4
gek22 £55 £66 £77 £88
er44 £99 $100 £101 £102
tt66 £103 £104 £105 £106


but instead it looks like

1 2 3 4
gek22 £55 £88
gek22 £66
gek22 £77
er44 £99
er44 $100 £102
er44 £101
tt66 £103 £106
tt66 £103
tt66 £104 £105

Admittedly this is my first time doing a crosstab query, but I have both my column and rowe headers set to group by, I kinda assumed this would group them in much the same way a pivot table does in excel

Any help on this would be great

Hmm, doesnt want to keep the spacing in it :( hopefully you can get the idea

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Crosstab Query

Jul 6, 2006

I have a report based on a crosstab query and the data changes every time the report is run even though the data is not updated. Can anyone shed some light?

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Crosstab Query?

Jan 25, 2007

I have a table with the following info:

Date/shift/name
1-1-07/1/tom
1-1/07/1/Bill
1-1-07/2/frank
1-1-07/2/Ben
1-1-07/3/Scott
1-1-07/3/Terry
1-2-07/1/tom
1-2/07/1/Bill
1-2-07/2/frank
1-2-07/2/Ben
1-2-07/3/Scott
1-2-07/3/Terry
1-3-07/1/tom
1-3/07/1/Bill
1-3-07/2/frank
1-3-07/2/Ben
1-3-07/3/Scott
1-3-07/3/Terry

What I want is the date to be displayed horizontally and the the names vertically with the shift as the intersection:

1-1-07 1-2-07 1-3-07
Tom 1 1 1
Bill 1 1 1
Frank 2 2 2
Ben 2 2 2
Scott 3 3 3
Terry 3 3 3

is this possible with a crosstab query or do I have to go about doing it some other way? If a crosstab query is possible how do you go about doing it?

Any help would be greatly appreciated.

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