I have a client database that has null values in issue received, there are as many as ten issues per client. What I need to do is make a list of clients that have only two issues outstanding and a list of clients that have three or more issues outstanding. There are two tables that are connected correctly. The client table(one) and the issues table(many).
View RepliesI have a button on a Tab that opens an input form to allow user to add a records. The record is indexed to relevant option from the combo bos on main form, so if no choice is made and user clicks add button megbox 'Invalid Use of Null' pops up. However I can't seem to prevent it, even when I've removed the code completely from the method/function. What's going on there? I just want the message box to say, please make a selection or something. Any ideas?
View 1 Replies View RelatedI have to give a three paramters queries. But i have to handle null responses also in such a way that in one parameter or two parameters i don't want to enter value and the result should bring all possible values with the parameters I entered
Like customer, status and order number in different fields
when i don't enter order number the result should bring all values in status and customer
In Expression Builder, I have the query(in the Criteria row) set to run based on values in different fields on a form. When one of the fields is empty however, the query will not return any records.
How can tell Access to ignore the fields when those fields on the form are empty and only look at fields that are not null.
I am trying to build a database for the handling of events for our clients. I therefore do have four tables named "Client", "Invitation", "Invitation status" and "Events". The table invitation includes an own primary key and the primary keys from the tables "Invitation", "Invitations status" and "Events" as so called secondary keys. I have now built an ongoing form, based on the "Client" table.
This form has a list field which includes the upcoming events. All our clients are listed below this form (as it is an ongoing form). After the name of the client I do have a drop down field calles "status" (source is the table "Invitation status" where we can remark if the client is invited, has confirmed his attend and so on.
The problem is now as follows: I am able to put in the status of a specific client for an event. The result is saved in the table as wanted. I am also able to change the status and this will be saved in the table as well. What doesn't work is that if I want to change the event, the status doesn't change. This means that if a client hast the status invited for event X he has the status for all events, which shouldn't be. The aim would be that if I am changing the event, the status also has to change.
how to deal with errors specifically with error "The Microsoft Access database engine cannot find a record in table".Database which I'm creating have table Products, which contains information about products. Most important information in this table is if product is VATable or not. I decided to define product names in invoice table that database can recognize products and calculate VAT in invoices if product is VATable. Problem starts if you have new product. When I add new product in invoice it counts VAT but when i go to next record I receive message mentioned above. It doesn't allows me to go to next record or save record.
I was wondering is it possible to make it that access allows to fill invoice, informs about new products only when i have finished adding all products in invoice and than gives opportunity to add them to product list?
I need to develop a database for HR department for hiring. There are about 30 departments in the office and these departments are distributed among 12 HR officers. Each HR Officer works on 2 or 3 of these departments at a time throughout the day. Currently the HR department is using Excel Workbook to keep record of each department (hence 34 Workbooks in use). I want to convert this system in Access.
Now the problem is that I am confused how to handle these department. To keep record, every department has exactly same type of data. I was planning to make one table for each department and make one form to enter data into each table (hence total 30 tables for departments). This sounds weird approach. I have done this to avoid concurrent access problem.
If I make one table to keep data of 30 departments and one Form for entry, will it be possible for 12 users to open the same DB, open the same Form and Insert/Update the same table at the same time? What approach should I follow?
I'm sick of the lame excuse for error messages that Access gives out.. I'm talking about 'Overflow', 'invalid use of Null' and such like.
What about telling you what field/expression caused the error and on what record if applicable.
It's so frustrating - Access obviously knows what caused the error but refuses to tell you so you have to go through the annoying process of taking out fields one by one (when in query view).
Does anyone agree that they need to make the error handling in Access much better?
Thanks for any interest in my post.
I've inherited a rather messy database which and I need to split it in order for us all to be able to enter data at the same time without problems however I get the following message..Index or primary key cannot contain a Null value..It happens at the table that contains the majority of the data (typical) but I cannot understand what could be causing it. I've check Null Primary Key field and removed all of the "required" statuses out of the fields but still no luck.
I tested on a backup database from a couple of days ago and it worked. Only difference is I've added a few bits and bobs since then and 1 field in the table it's stalling on but this field doesn't contain any null values either and I've tried deleting that field in my test database but made no difference.
I have recently upsized an Access database to SQL Server. The .adp is for the most part working fine.
However, when an end user tries to create a duplicate record in one of the Primary key columns of a Form he gets a SQL Server error message as follows:
"Violation of Primary Key constraint. Cannot insert duplicate key in object myTable".
This is obviously not a very useful error message. What would be the best way to ensure that a more useful error message is returned?
I have considered adding code to the "After_Update" event of the cell in question. This however seems long winded. Is there an easier option?
Thanks
Kabir
Hi
Have the following code that works on Access 2000
Dim myForenameBefore As String
Dim myForenameAfter As String
With CurrentDb.OpenRecordset("Names", dbOpenDynaset)
Do Until .EOF
myForenameBefore = .Fields("Forename")
myForenameAfter = Replace(.Fields("Forename"), "Elizh", "Elizabeth")
MsgBox myForenameBefore & " " & myForenameAfter
.MoveNext
Loop
.Close
End With
So that I can replace any abbreviated names in a table, however I cannot figure out how to put the value of myForenameAfter back into the table replacing the existing data.
Must be particularly thick today
I have a form with a number of check boxes. Clicking on the checkboxes carries out a count function which is then displayed. If the count goes above 20 then a message box is displayed telling the user of it. My problem is that once the number is above 20, the message box diplays everytime. I want it to display just once, regardless of how high the number goes. The checkboxes can be ticked in any order.
At present i'm using
On click
If Me.Text1 > 20 Then
Msgbox "The number is graeter than 20"
End If
Hi all
The following code only half works. I want to stop an ugly error occuring when primary keys are duplicated. In the following code the error handler picks up and displays a simple message when a user attempts to add duplicate values. BUT if the users adds a record, the record is successfully added followed with the same error message. I think I've put the error handler in the wrong place, but I can't figure out where it should go. Any ideas are much appreciated.
Damon
Private Sub cmdUpdateGoMaths_Click()
'update Go Maths
On Error GoTo error
Dim adors As ADODB.Recordset
Dim sSQL As String
' sSQL = "Select * from datGoMaths;"
' Set rsADO = New ADODB.Recordset
' rsADO.Open sSQL, CurrentProject.Connection, adOpenKeyset, adLockBatchOptimistic
sSQL = "dataGoMaths"
Set adors = New ADODB.Recordset
adors.Open sSQL, CurrentProject.Connection, adOpenDynamic, adLockOptimistic
With adors
.AddNew
.Fields("EQID") = Me.lstGoMathsStudentName
.Fields("IDGoMaths") = Me.lstUnitNo.Column(0)
.Fields("Score") = Me.txtScore
.Update
End With
Set adors = Nothing
MsgBox Me.txtStudentName & " Added"
Me.lstGoMathsStudentName = ""
Me.txtScore = ""
error:
MsgBox "test"
DoCmd.CancelEvent
End Sub
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
in access, i have the following alias to give a query column result
ref1: [org_ref_name] & " " & [ref_document_abbrev] & " " & IIf(IsNull([ref_prefix]),"",[ref_prefix] & " ") & [ref_basic]
what would be the equivalent to get the same result in an access project query
i think the problem is with the 'isnull' function
many thanks for this and previous help i have received on this forum.
Is Access slower at summing null records than SQL server?
I have a query which takes less than 1second in SQL server but takes about 5-10 in Access but can't think why there is such a lag in processing speeds.
I'm attempting to use Access to automate reporting emails and I'm trying to identify the best way to identify if the report is NULL (blank).
VBA:
(strReportName is set to the report. Employees is set to the Employee Name. Email is set to the employees email address. [Requested By] is the column in the report that is used as a filter. The code is functional but also emails reports that are blank. I'm trying to just send the ones that have data)
...
strOutputPath = CurrentProject.Path & "" & strReportName & "'" & Employees & "'" & ".pdf"
[Code] .....
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?
I currently have a macro that sets the value of several fields on a "lost focus " event; however there is an error that I would like access to ignore, is there any way to have this macro process this function "On Error Resume Next" ?
Carbo
When I export my access database to XML I noticed that the XML elements for the table keys contain the key numbers themselves, not the table name (or a chosen field in the table). For an application I am working on, this presents a problem. What I have is:
One table called 'Process' that looks like:
Process instance_idSystem instance IdProcess name
26 24 Two_thread_process
I have another table called "Thread":
Thread _instance_id Process instance_Id Thread instance name
30 26 T1_instance
XML export looks like:
- <process_INSTANCE>
<process_instance_id>26</process_instance_id>
<system_instance_name_id>24</system_instance_name_id>
<process_instance_name>two_thread_process</process_instance_name>
- <thread_INSTANCE>
<Thread_instance_id>30</Thread_instance_id>
<process_instance_id>26</process_instance_id>
<thread_instance_name>T1_instance</thread_instance_name>
</thread_INSTANCE>
</process_INSTANCE>
What I would *like * the XML to look like is:
- <process_INSTANCE>
<process_instance_id>26</process_instance_id>
<system_instance_name_id>24</system_instance_name_id>
<process_instance_name>two_thread_process</process_instance_name>
- <thread_INSTANCE>
<Thread_instance_id>30</Thread_instance_id>
<process_instance_id>two_thread_process</process_instance_id> (**name instead of key here**)
<thread_instance_name>T1_instance</thread_instance_name>
<thread_instance_type>periodic</thread_instance_type>
</thread_INSTANCE>
The access XML export writes out the key values as they appear in the tables. What I would like is for it to put in the ‘process instance name’ instead of the key that points back to the base (process) field.
Any pointers on how I could do this?
Thanks
John
Does anyone have a recommended way to deal with images (ie. linked to file, OLE object embedded, others I'm not aware of)???
I have a report which summarizes the history of a project. In this report I have a subreport which has task information. As a user enters task information they have the option of associating pictures with the task (ie. prototypes, design images, test setup, etc).
So my data structure is based on:
- many projects
- each project can have many tasks
- each task can have many pictures
My report for each project lists some typical project information and a subreport shows the task details associated with that project along with as many images that are associated with it.
My current system links to files on a network to avoid database size. This works well for storage and form use, until I try to print or preview a report. Then some of my pictures don't show up and I get a message that says images may be too large. My report could conceivably have up to 100 images, but I'm images stop showing up when I have around 15-20 pictures. Pictures files are typically 300 KB.
Is there a better way to show images on a report?????
I have a form where the user enters a year then clicks on a command button to open a report.
If a year that there is no data for is entered an error 2427 occurs.
I have tried putting the following code in the on error event of the form with now success:
Select Case DataErr
Case 2427
MsgBox "There are no records for the year you entered" & Chr(13) & "Make sure you entered the correct year”
Response = acDataErrContinue
Case Else
Response = acDataErrDisplay
End Select
Does anyone know how to trap this error?
Thanks
Hi All,
I am rather new to this and I must admit I am getting everything completely wrapped around my head!
I am developing a database that stores technical support requests received and their solutions. I have three main tables :
Problem - stores all the details of the problems received
Client - stores the address details of the client which is then associated with the 'Problem' table
Company - stores the name of the company which is then associated with the 'Client' table. This is a separate table as different clients can work for the same company.
At present, I have a 'problem data entry' form in which I enter all the details of the problem. At the top there is a section where I can do a search for a particular client and company and the details appear in the respective text boxs on the 'problem data entry' form. If the client does not exist, I have a button that I use to open another form which allows the entry of the new client's details ('New Client'). The user can choose which company this client works for by using a combobox. If the company is not already in the database, I have another button for opening a 'New Company' form!
Its all a little convoluted and it does not work particularly well to be honest. When I add a new company, I need to move forward a record and then back in the 'New Company' form in order that the new company information is saved correctly.
The company selection combobox in the form 'New Client' is then updated with the new company name BUT I need to actually open the combobox and select the company name myself for it to work properly! Once again I also need to move forward one record and then back again in order to properly save all the information before I can close the form.
What would be nice is to do a search for the the company in the combobox on the 'New Client' form, if the company is not found, it automatically adds the company to the database whilst updating all the necessary links. Hence getting rid of the 'New Company' form. I would also like to get rid of the problem of having to move forwards a record and then back again.
Any ideas? I find my method to be rather poor, there must be a simpler way of doing this!
Many Thanks,
Lee
On a form i have a textbox to enter a date and multiple command buttons to open other forms.
After entering a date value, followed by either a tab or clicking on one of the command buttons, i want to validate the entered date value. If the date is invalid i want to display an error message and the cursor positioned on the textbox field.
The LostFocus event of the textbox is as follows:
Private Sub txtDateField_LostFocus()
If Not IsDate(txtDateField.Value) Then
MsgBox "Date invalid."
txtDateField.SetFocus
End If
End Sub
If entering an invalid date is followed by a tab, the error is displayed but the cursor is not positioned on the textbox field.
If entering an invalid date is followed by clicking on one of the command buttons, the error is displayed but the expected form is opened.
How to position the cursor appropriate and how to prevent opening the form?
Who helps?
On a form i have a textbox to enter a date and multiple command buttons to open other forms. After entering a date, either followed by a tab or clicking on one of the command buttons, i want the date validated. In case of an invalid date an error must be displayed and the cursor positioned to the textbox.
Therefor the LostFocus event is as follows:
Private Sub txtDateField_LostFocus()
If Not IsDate(txtDateField.Value) Then
MsgBox "Date invalid."
txtDateField.SetFocus
End If
End Sub
If entering an invalid date is followed by a tab the error is displayed but the cursor is not positioned to the textbox.
If entering an invalid date is followed by clicking on one of the command buttons the error is displayed but a form is opened.
How to position the cursor correctly and prevent opening of a form?
How do you do an Access/VBE split screen? I want to be able to watch the code execute as I enter data into the form.
I have redesigned a database, essentially building a new one from scratch. I have all of the forms created and they are working beautifully. :) Now, I'm error-handling to create user-friendly messages. I have a superb Access programming book, but it only briefly mentions error handling and doesn't describe at all how to do it. Most of my forms are pretty simple, and I've been able to complete all of the error-handling tasks using the Form Error event as well as coding other events with the error message number. However, the main form is complex and includes a function in a standard code module and a custom sub routine.
TIA!
AA