Preventing Duplicate Record Entry

Aug 23, 2006

Hi all,

I created a form for entering employee skillset in Accounting.

I have set up three fields - one for Primary Skillset and the other two for secondary skill sets -

The skillsets are -Payables, Receivables, General Ledger, Purchasing etc.

How can I ensure that a user will not enter duplicate values in the three fields.

That is a user will not enter for examply "Payables" in the Primary Skillset, and Secondary Skillset fields.

I tried creating a multiple field index but it does ont appear to work.

I will appreciate all the help.

Thanks

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It should show an error "Saying entry already exists" Do you want to check,edit or add new...

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Nov 26, 2006

Hi again, thanks to all for the help given so far.

Is there anyway (other than making that field a primary key) to prevent the same value being entered into a different record?

E.g.

If under 'Name' Radion has already been written, I want an error message coming up saying there is already a record with radion.

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Aug 2, 2006

Hi all,
I am currently using this code in the before Update event of the Surname Textbox on a form. The first Textbox is FirstName.
The second one is Surname.

************************************************** **

If (Not IsNull(DLookup("[FirstName]", _
"Employee", "[FirstName] ='" _
& Me!FirstName & "'"))) And (Not IsNull(DLookup("[Surname]", _
"Employee", "[Surname] ='" _
& Me!Surname & "'"))) Then
MsgBox "Someone already exists with the same name! Please check for duplicates", vbCritical, "IPDMS"
Me.Undo
End If

************************************************** **

However once the user has entered the surname and tries to save the record the MsgBox is coming up.
Basically what is happening is the first name is coming up as the duplicate entry only.
I need to prevent the whole name (first name and surname together) from being duplicated.

Thanks if you can help me.

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I am attempting to make a system where the lifespan of baskets in a production process can be tracked. In order to do this I am looking to create a form to input when a new basket is introduced.Each basket has a 'disc' associated with a number on (BasketNumber), however these discs are reused once the basket breaks which is making it more difficult.

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May 4, 2005

Hi
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Mar 4, 2008

Hello All,

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i.e.
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Jun 21, 2013

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So, for example, if "Butter Fingers" is entered and "Butterfingers" is already in the database, I want access to prevent the new record from being created.

The code I found on MS Developer's reference only prevents exact duplicates which seems pointless since this can be done just as effectively on the table level using an index.

Anyway, here is the code:

Private Sub CompanyName_BeforeUpdate(Cancel As Integer)
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"tblCompanies", "[CompanyName] ='" _
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1------------1---------07/18/05----AD----------1107/18/05AD
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What I'm looking to do is prevent the user from double booking a room,like being able to check if the Room is already booked at that time and date, before the new information is added to the table and the room becomes double booked.

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Cheers

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Dec 8, 2004

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S

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May 30, 2005

I have a table that has (to simplify things) two fields.

[Patient_No] [ID]
BA4206 1067404
BA4206 1067405
BG1013 1067545
BG1013 1067546
BG1013 1067547
BG1111 1078432

I want to be able to count the number entries where the Patient_No is the same and output the query like this:

[Patient_No] [ID] [COUNT]
BA4206 1067404 1
BA4206 1067405 2
BG1013 1067545 1
BG1013 1067546 2
BG1013 1067547 3
BG1111 1078432 1


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Feb 28, 2005

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Private Sub LastName_AfterUpdate()

Dim x As Variant

x = DLookup("[txtLastName]", "[tblVolunteerInfo]", "[txtLast Name]= '" & Me![LastName] & "'" & " And " & "[txtFirstName] = " & Me![FirstName])

On Error GoTo CustID_Err

If Not IsNull(x) Then
Beep
MsgBox "This name already exists in the database. Please check that you are not entering a duplicate person before continuing.", vbOKOnly, "Duplicate Value"
Cancel = True
End If

CustID_Exit:
Exit Sub

CustID_Err:
MsgBox Error$
Resume CustID_Exit

End Sub

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May 22, 2006

I have a Form based on a table of current Players in a football league.
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I've searched the Forums but have had no luck.

Any advice/assistance is greatly appreciated.

Thank-you very much.

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Jul 24, 2005

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Sep 20, 2005

Greetings,

I am using Access 97 at work, Access 2000 at home. This is a work project.

I have a database that tracks employee awards. One type of award is the Peer Award. An employee can receive more than one award during the reporting period (01 May 05 through 30 April 06), but an employee can nominate someone only ONCE during this period. The query also filters all award for the word PEER in the Award_Type field.

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In my query I have as the criteria to limit records for the reporting period above.

In my subform, is there a method to check the combobox that I'm using for a duplicate nominator, then notify the user of this duplicate?

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http://www.access-programmers.co.uk/forums/showpost.php?p=158082&postcount=2

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