Field Does Not Exist - Any Useful Functions?
Aug 6, 2007
I need a function or way of dealing with a field that may or may not exist.
I am crosstabbing a large database and then building queries on the crosstab. However, the field from which the column headings come does not always have the same data in it as I have to cut the data in different ways (always similar but not always the same). As a result, sometimes I get the error message:
"The Microsoft Jet Engine doesnot recognise [FIELD] as a valid field name or expression"
where a field I was expecting did not appear.
If it was a null value within a field I remove it like this:
iif([Field] is null, 0, [Field])
Is there an equivalent formula for "exists" that will stop my queries falling over when it cannot find the field?
eg iif(exists([Field]),[Field],0)
Any help, guidance or assistance gratefully received!
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Jan 30, 2008
I have a database with 200.000 records, how I Add Primary Key Field.
I'm getting error "File sharing count exceeded..", tried to increase "MaxLocksPerFile" registry , but without success.
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Feb 9, 2006
Hi
I have to rethink and change the way of display in my form.
I have a form bound to ID.
I want to show 2 fields if they contain data, otherwise hide them
How do you do that?
Micke
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Mar 24, 2005
How would i write an if statemet that does the following:
If Forms!Form1!Field1 exists in table1!Field1 then run Query1
Let me know,
Thanks,
ovadoggvo
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Nov 20, 2006
"Field 'F1' doesn't exist in destination table 'tablename.'"
I hate this error message.
I am using the following command to load data from an excel spreadsheet into a backend SQL Server database via an .adp:
DoCmd.TransferSpreadsheet acImport, acSpreadsheetTypeExcel7, sTempTable, strFileName, False, "A2:B4000"
I have purposely used "False" to ensure that the first line in my spreadsheet is ignored. This is because the first line in my spreadsheet contains headings that do not match the column names in my table.
I do not wish to change my headings as end users will be making use of my application and they will not like headings such as "int_FactoryID". Likewise I do not want to change the column names in my table to words such as "Factory ID" as this would be a bad naming convention.
Is there a way to use TransferSpreadsheet without necessarily matching the headings in the spreadsheet to the column headings?
Is there a way for TransferSpreadsheet to ignore the headings and assume that the first column in the spreadsheet needs to go to the first column in my SQL Server table?
Any help would be appreciated.
Thanks
Kabir
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May 1, 2013
Validating field from a query. I have a table with a field that has a value number that I need to validate that that number exist in another table in a field
Table1.field1 Number
Table2.field1 number
So let's say a have in table2.field1 the list 1 2 3 4 5 8
In table1.field1 I need to validate that the number I enter is present in table2.field1 so 1 would be ok but 6 invalid and it can't be a from list statement because I need the person to enter a number and get no error or get invalid number.
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Jun 19, 2013
I have a form that contains two text fields i.e.; [Scat_text] and [STyp], which each can be changed by the users. I would like to combine the results of the two fields together and validate if the results exists in a query. What would be the best way to accomplish this?
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Jan 17, 2015
I want to check if data entered in a form field is existed
The form is bounded to a table
I used this code
If DLookup("Telegram_Number", "tbl_Violation_Of_Building", "Telegram_Number Like " & Forms!frm_Add_Violation_Building!Telegram_Number) Then
MsgBox ("number existed")
Me.Telegram_Number = ""
Else
End If
everything is ok but if the data is existed the database show the message and clear the field but i'm getting a Run-time error
'-2147352567(80020009)': the macro or function set to the beforeupdate or validationRule property for this field is preventing [ISF] from saving the data in the field
I guess the problem because the form is bounded to a table so he will save automatically
My solution is to unbound the fields and save the data via vba but is there any solution with a bounded form???
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May 8, 2013
The field SECL DDI has the users phone number unfortunately over time these have been entered in different formats so there are 5 digits, 6 digits, 7 digits etc...Can I run a query that counts the number of digits in each filed and then tell me how many of each exist
Ie
4 digits 3412
5 digits 5000
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Jun 21, 2005
I know SQL well enough, but I cant seem to get my query to work. Basically, I am trying to display a series of posts, with the number of comments on the side.
I have two tables, Entries and Comments, which look like this:
Entries
---------
IDTitleContent (memo field)
1CatsSomething about cats here
2DogsSomething else about dogs here
3RodentsMy pet rat runs in a wheel
etc.
Comments
--------
IDPostIDComments
11My cat's name is mittens
21I taught my cat how to throw a curve ball
33Rats like squeak toys
42Nobody likes dogs
53Bunnies make good pets
61Cats are witches in disguise
Comments.PostID corresponds to Entries.ID on a many-to-one relationship.
I want to run a query that will join the number of comments (which is a Count of each row in the Comments table where Comments.PostID = Entries.ID) to the existing table, so that it will look like this:
Entries (with #ofcomments joined)
----------
IDTitleContent (memo field)#ofcomments
1CatsSomething about cats here3
2DogsSomething else about dogs here1
3RodentsMy pet rat runs in a wheel2
etc.
Usually, this would be a really simple SQL statement, but as I am using a Memo field, I am getting a "cannot use Memo field in aggregate function" error.
I'm not sure what to do, any help would be appreciated :)
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Oct 23, 2014
Adding fields into a function has been a problem for me:
Code:
IIf((Count([qryADDR].[Fuel Type]>2), 'MPS', [qryADDR].[Fuel Type])
The logic I'm trying to create is the following: If the number of Fuel Types is greater than two, then the field will have the value 'MPS.' Otherwise, the field will just have the regular fuel type value. It's referencing this fuel type field in the function that is the problem. I have not been able to get this working.
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Aug 7, 2013
Was trying to append an Excel 97-2003 spreadsheet to an existing Access 2010 database.
The last field in the spreadsheet is Date Update.
When I click 'Finish' I get the error "Field Date Update doesn't exist in destination table <name of table>.
This database was created in Access 2003, and was not updated since and I don't have Access 2003 on my destop.
I saved the Excel Spread as a Excel Workbook *.xlsx and tried to append it. Same Error was the result.
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May 3, 2014
I'm getting error 2391 field 'f1' doesn't exist in destination table
Code:
Dim FileBrowse As Office.FileDialog
Dim varFile As Variant
Dim sFile As String
Set FileBrowse = Application.FileDialog(msoFileDialogFilePicker)
[Code] ....
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May 8, 2014
I am new to access, after learning basics I am trying to build my first DB.
Having some troubles with the IIF syntax. I am placing the formula
=IIf([Total]<=(200),[Total]*(0.7)) & IIf([Total]>(201)&[Total]<=(500),[Total]-(200)*(1)+(140)) & IIf([Total]>(501),[Total]-(500)*(1.2)+(300)+(140))
In the form data control source of a field. The first 2 statement seems to work, but the last statement results in some crazzy figures.
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Aug 8, 2013
How do I activate functions mouse functions in a field? I want to click the right key of the mouse when I'm in a field within a form so I can cut, copy, and paste.
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Jul 8, 2012
i need domain aggregate functions to count the occurrences of specific value in a field, and when it exceeds 1, display null. or 'group by' subqueries with count() to see if you should populate the field or not.
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Feb 21, 2007
Hi,
I've got an Access 97 piece that imports text files, copies and moves the used files and several other things.
I've now been asked to enable it to create a fairly complex folder structure.
I've done that, but I'd like to be able to issue a warning if the root folder already exists, can someone please show me how to check if a particular folder exists (I don't particularly care if its full or empty).
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Aug 24, 2006
Hi,
My database has 3 fields ID,Cust_Balance,Cust_Type.
I need to assign Cust_Type as 1,2,or 3 based on Cust_Balance amount.
If Cust_balance is lessthan 3 million then Cust_Type is 1,if between 3 and
10 million then type 2 and,more than 10 million as type 3.How do i accomplish this in Access ?Is IIf the right choice?:confused:
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Apr 11, 2007
It was suggested to me to use a Not Exists Join to accomplish the below problem. I'm not sure how to write SQL for this.
I have the following:
1,000 records in table A
500 records in table B
Field ProductId is common to both tables.
If a ProductId from table A does not exist in B table a record needs to be added to table B. In this case 500 records from table A need to be added to table B.
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Jun 12, 2006
Hello all. I'm trying to finish up a database for our farm and am running into issues as I'm pretty new to Access. I know VB6 but not a lot of VBA. We spray chemicals, and need to keep track of the acerage we spray for the date.
So here's my problem:
When I go to write my records, I need to search a table for a date. If the date exists already, then I need to update the total acreage related to the date. So first, how do I search the table and keep track of if the date was or wasnt found, and if found, calculate total acreage from value pulled from table, and the new acreage value, then write that back to the table.
Would really appreciate the help. Thanks.
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Aug 1, 2006
Hi,
I have an access database with 8 tables and as many queries and forms. Our company uses an application that performs backups of other companies data, this data is imported into access into one table. The backups are scheduled to run overnight, but sometimes they do not start for whatever reason. We need to use a query to identify when a backup does not start, so therefore to identify when data does not appear or exist in the table.
This problem is only concerned with two tables. In one table i have the backups policies (Backup Policy) and the details about when the backup should run. In the other, the main table (Backup) is the actual data that has been imported. So far I have queried only the backup policies that should run, but i need to go one step further and compare this to data in the Backup table that does not exist.
Im not sure whether this should be a bit of code in the query that compares data in the Backup Policy table with that in the Backup table when it is not present.
Ideally i need something that says. "If a particular policy name does not appear in any record in the Backup table, report back a list of policy names."
OR
(Lookup a list of policy names in table backup policy,
if these policy names do not appear in the backup table, report back a list of the policy names,
if these policy names appear in the backup table, do not report back a list of the policy names)
If anyone has any ideas if this is possible, and how, I would be most grateful. Also, if it involves the use of code or functions etc I may need a little bit of guidance!!
Let me know if you need any more details of the table structures.
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Mar 1, 2007
Hi all,
I have a form that is based on a query that uses a yes/no option as the filter. the problem i am having is that in this form if a user has more than 1 no entry the users name shows up as many times as entries that they have. i would like this to be shortened down to only one time for all no entries. is this done within the query?
SELECT Employee.EmployeeLastName, Employee.EmployeeFirstName, Employee.EmployeeID
FROM Employee INNER JOIN Expense ON Employee.EmployeeID = Expense.EmployeeID
WHERE (((Expense.AdminApproval)=No));
OR could this be done better in the on load of the form using a counting loop?
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Nov 27, 2007
I would like help with a macro that looks to see if a record in my database table exists, then if it doesn't it adds a record with my data, but if the records does exist, it stops the routine and sends a message box to prompt if you want to continue with adding a new record.
The problem that I'm having is that my macro errors out when it doesn't find a record. I just want my macro to just see if a record exists or not. Then I can write my Iff statements based on whether it finds our or not. How do I just have my macro check for an record, then if it doesn't exist tell that it doesn't exist and not stop my macro. Is there some kind of IfExist() function or something?
Thanks for any help anyone can give me.
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Jan 26, 2005
Hi,
I put a Dlookup function to compare the new entry in a form and the code is like this:
If (Not IsNull(DLookup("[empno]", "Attnd_tbl" , "[empno]=[empnotxt]")))then
MsgBox "This Employee Already Exists"
cancel = true
Me!empnotxt.undo
end if
end sub
this works for comparing one field only, since I want to check if the employee is already entered on a certain date, how do I put two fields in this function to be looked up if for example "[empno]and[date]","Attnd_tbl","[empno]and[date]=[empnotxt]and[datetxt]"
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Feb 21, 2005
I'm using the following code to autofill the city and state on my form.
I can't figure out how to capture if there is no matching record in the table.
If there is no matching record, I will:
1) inform the user with a msgbox
then if the user wants
2) open a form to add the record to the table
Dim rst As DAO.Recordset
Dim db As DAO.Database
Set db = CurrentDb
Set rst = db.OpenRecordset("tblZipcodes", dbOpenTable)
rst.MoveLast
rst.MoveFirst
Do Until rst.EOF
If strZipLookup = rst!ZipCode Then
Me.txtCoCity = rst![ZipCity]
Me.cboCoSt = rst![ZipState]
End If
rst.MoveNext
Loop
rst.Close
End If
How can I capture if there is no matching record in the table?
Thanks,
Sup
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Oct 7, 2004
I have set up a simplified event booking procedure, similar to the one generated by the access event manager wizard. It uses three tables, one with attendees details, one with the event details and abooking table that links the attendee ID with the Event ID.
The booking table uses commands similar to SELECT[Names + Contacts].[ID],[Names + Contacts].[Surname]FROM[Names + Contacts] to generate drop down lists of surnames and events so that the two can be matched together.
This works fine as a table.
However when placed into a form, whenever the form is opened I get an error message saying the record source specified on the form does not exist.
I have tried regenerating the form, etc. I have used a wizard to generate the form, closed the form, not changed anything in the database and then tried reopening it and I get the error message, can anyone shed any light?
Also if you accept the message then it knows how many records there are, so it must know there's something behind it, also if you change to design mode and then back to form mode, it finds all the data.
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