Remove Duplicate Entries In Query Design

Oct 27, 2013

I am attempting to filter the data in query design such that it will not return anyone in the database has there name present more than one time.

For example, in the image below under the Owner_Name field there is "Abbot, Mark C Etux Wanda C". This name appears twice in the database. My criteria is the name can only appear once, therefore this record would not be returned after the query. In query design I would like it to return only name records that appear once in the entire database if there is a way to structure that.

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Remove Duplicate Entries

Mar 8, 2007

I am using information pulled from a separate database to create a new database for mail merger purposes. I have created delete queries that go out and delete specific records from the new database to help us get the proper list before setting up the mail merge. However, now I am stuck. We have customers that have multiple accounts with us that are qualified for this mailing, yet each customer needs to receive only one mailing. The table looks like this essentially. Table 1id statCode acct custNumber* addy-etc. *This is the field in which we can find exact duplicates. What I need to do is remove the duplicate entries and leave at least one of the entries within the table. It does in fact need to remove the whole record, but as I said leave at least one of the records behind. Can someone please help me to find a solution to this. I guess I should add that I am not very good with Access and I use it very sparingly. I assume that the above can be accomplished using a SQL statement. Any help will be greatly appreciated. LR**EDIT** I also needed to add that I do need to exclude 000 00 0000 from being removed because of duplication.

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How Do I Remove Duplicate Entries From A Table ?

May 19, 2007

Hi all,

I have imported a table from Excel. The table contains a long list of names and there are quite a lot of duplicates.
How do I remove the duplicates so I can import the clean list into a value list in Access ?

Thanks in advance !

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Modules & VBA :: Code To Consolidate Two Tables And Remove Duplicate Entries

Oct 3, 2013

I have two tables in my Access database. Table 1 has three columns, First Name, Last Name and Phone Number. Table 2 has just 2 columns, First Name and Last Name. What I would like to do is write a VBA macro to consolidate Table 2 into Table 1 and insure any duplicate First Name-Last Name combination is removed.

Table1

Code:
F.Name L.Name Tel.N.
John Smith 12345
Larry Miller 12344
Tony Woods 12333

Table2

Code:
F.Name L.Name
Albert Black
Larry Miller
John Bush

Table1 Post-Macro

Code:
F.Name L.Name Tel.N.
John Smith 12345
Larry Miller 12344
Tony Woods 12333
Albert Black
John Bush

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Queries :: How To Remove Duplicate Records From A Query

Feb 11, 2014

I have this small database, I would like to have your support to setup this query "QryResults" in order to remove the duplicate records, I can't find a way to get shown only true records, for some reason I'm getting duplicate rows and fake values, the query is calculating operations from two different queries and a table.

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Queries :: Syntax In Query To Remove Duplicate Data For Field

Apr 26, 2013

I'm having difficulty with the syntax in this query to remove duplicate data for the field "StocktransID".

Code:
SELECT DISTINCT tblStockTrans.StockTransID, tblItem.Brand, tblItem.Category, tblItem.SubCategory,
tblItem.Model, tblItem.Description, IIf(TransTypeID=3,Quantity*-1,Quantity) AS Qty,
tblTransaction.TranstypeID, tblItem.ItemID, tblTransaction.TransactionID, tblItem.ItemType,
tblItem.Origin, tblOption.ParentID

[code]...

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Removing Duplicate Entries From Joined Tables In CrossTab Query?

Jun 19, 2007

Hello all,

I have made a crosstab query that is sporatically making duplicate counts. I'd like to know how to fix the problem, but more importantly - I'd like to know why and how my query is giving me these results so I can avoid making this same mistake again.

The relationship is set up so that all records from one table are returned, with only matching records from the other - so no problems that way as far as I can see. This is my crosstab query that is giving some counts of the same record as being matched sometimes two, three, or even four times:

TRANSFORM
Count([Testing DB].[DB_ID]) AS [CountOfDB_ID]

SELECT
[Testing DB].State, [Location].[North], Count([Testing DB].[DB_ID])
AS [Total Of DB_ID]

FROM [Testing DB] LEFT JOIN [Location] ON [Testing DB].[Address] = [Location].Address

WHERE (([Testing DB].[Window Length]) Is Not Null))

GROUP BY [Testing DB].State, [Location].[Size]

ORDER BY [Testing DB].State, [Location].[Size]

PIVOT Format([Date],"mmm-yyyy");

When I do a simple query for a list of the records being counted by this query, I can see the duplicate entries and can eliminate them simply by adding "Distinct" to the select statement - but I haven't had any luck adding any kind of distinction with this crosstab that will do the same.

How can I eliminate duplicate counts of records in my crosstab? If anyone has a suggestion, it would be much appreciated.

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Queries :: Remove Duplicates Entries In Table?

Jun 11, 2013

I have a table called Stock Levels which contains 3 fields. (ID, ProductID, StockLevel) ID is the Pkey, ProductID contains duplicates and StockLevel which contains different stock levels

and I am trying to remove the duplicates and retain the the data so I am left with the correct stock number

what I have done is the following, but I am still getting duplicate values in productid and stocklevels

SELECT DISTINCTROW id, productid, stocklevel into mynewtable from stocklevels

I have attached a screenshot of the table

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Remove The Design Window ?

Aug 30, 2006

Is there a way to remove the design window from your project ?

I have made a program but, the problem I am having is that when
I run it and say the query results show up I close that window and
then the design window shows up. I need the close button on the
other windows but I need to block out the design window when I
use the program.
I also know about the start box where you can uncheck items and
they are removed. Am I missing something ?

thx

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Duplicate Entries

Mar 30, 2006

hello,
Currently i have a database that holds information about computers. Each computer has a Service tag and is associated to a person. I need to be able to prevent duplicate service tags from being entered. I am using indexing and don't allow duplicates from the table design view. But, if a duplicate service tag is indeed entered, i want to inform the user who that service tag currently belongs too without having to search through the DB manually. I need then to give the user the option to delete the duplicated record they just entered or change the service tag that they just entered. Thanks.
Jared

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Remove Duplicate Records

May 1, 2007

Can anyone suggest a way to remove duplicate records.

I've come up with this:
SELECT *, count(*) cnt FROM tableName GROUP BY fieldname1, fieldname2, .... HAVING cnt > 1

But this does not fully resolve my problem.


Thanks.

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I Need To Remove All Duplicate Records.

Feb 6, 2008

Hi,

I need to remove all duplicate records in a table. These are records that have matching Contract and Order fields. I can't do a DISTINCT query, because that still leaves one record. Thanks.

Michael

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Prevent Duplicate Entries

Oct 25, 2006

I've set up a booking system and am looking to stop the system recording double bookings.

I've 3 fields, RoomID, Date and Time that need to be searched, however I can't just simply set the properties to No Duplicates (as this would mean a booking cannot be made on the same day at 9:00 and 12:00 for example).

How can I do this?

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Preventing Duplicate Entries.

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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Finding Duplicate Entries

Oct 12, 2006

I am running a query to find out duplicate in two fields in one table. Postcode and Address Line 1. Can anyone tell me the formula for only picking up the first 6 charaters in the Address Line 1 field??? I cant remember how to do it!

HELP!

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Duplicate Entries And Queries?

Jul 30, 2007

Is there a way to find and remove duplicate entries in tables by using queries.....if so, how specifically?

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Preventing Duplicate Entries

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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Stopping Duplicate Value Entries

Oct 17, 2006

I have a booking form database
With a date field.
I want users to be warned when they try to enter a date that already exists in the database in order to avoid double booking:confused: .....

all suggestions appreciated:)

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Help Checking For Duplicate Entries

Dec 28, 2006

Hello,

I'm new to using VBA for MS Access. May I enlist your help, Please.

I'm working on a human resources database for a group of employees. I'm trying to automate their login process after they have opened the database so that each employee's privacy is respected. Using an initial form, employees are separated into "New User" or "Returning User". My problem concerns setting up the "New User" in the database.

The New User is directed to form "frm_NU". The form has several unbound fields which are later carried to the table "tbl_Employees". Two of the fields on the form are used to create the EmployeeID. Those are Initials [INI] and Phone Extension [EXT]. The EmployeeID will be used in a filter so that only that employee's information is made available to the user (simulated Privacy).

Because the employees are unfamiliar with MS Access and its cryptic error messages, I need to create a message box which will give a plain English warning when a user attempts to use an existing ID to create a new record. [EmployeeID] is a field in the table. it is set as a key and does not allow duplicates.

When a new user enters his/her initials and phone extension I want the new ID to be compared to the table and if found, a message should appear. This is a preemptive strike to prevent the user from getting to the more cryptic MS Access error message.

I've tried using Dlookup and Dcount to try to pass some meaningful data to the If statement variable VarX to trigger the message box; assuming that Varx should be something other than Null or Empty

Dim EmpID As Variant
Dim VarX As Variant

EmpID = [INI] & [EXT]

VarX = DLookup([EmployeeID], "qry_Employees", [EmployeeID] = [EmpID])

If VarX <Is Not Empty> Then
X = MsgBox("Another record already exists by that name", vbOKOnly)
Else
Y = MsgBox("Passed", vbOKOnly)
End If

I keep getting an error at the DLookup formula or DCount formula saying: Run-time error; 2001 You canceled the previous operation. It also appears that the DLookup never looks up anything nor does DCount count anything even though I'm purposely entering duplicate information which exists in "qry_Employees". I was expecting VarX to be either the duplicate ID or a record number or record count or something.

Any ideas or constructive suggestions?

Thanks,

Goh

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Get Rid Of Duplicate Entries In A Combo Box?

Sep 10, 2004

hey,

sorry to bother everyone again, this is such a great forum, and ive gotten soo much help here.

i have a customer table, containing custRef, custName, drawerRef, Address, Phone, Fax

now it contains site addresses so the custName can be the same for quite a number of entries. no the combo box in my form obviously shows all entries for custName which means the same name repeated sometimes 6 or 7 times, as i only need to select one, is there a way without looking to different tables etc to just show unique entries. i dont want to list them all in another table because i dont know them all yet, so i want it to lookup the list as i enter them.

cheers

Baz

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Error 3022 Duplicate Entries

Aug 6, 2006

Hi,
I have a rather large database that was built in Access '97 and recently converted to 2003. I have a couple problems now. I get an error message about not being able to update the form because it would create a duplicate value in the primary key, index, or relationship. (Error 3022) I didn't build this particular database so I'm not totally sure why somethings are done the way they are. I've spent a long time going through everything to try to understand the relationships and I've asked lots of people at work to look at it, but no one seems to understand why it's doing what it's doing. The Access Help information has helped me understand some things better, but not this problem. I've gone through every table and removed all primary keys and set all indexes to allow duplicates. Then, when I was looking at the relationships and object dependancies, I think everything looks to be in order. However, when i add info directly to the table instead of using the form, the form is not updated with the new info. the table keeps the information, but isn't communicating with the form and i suspect reverse is true which is where the error is coming from. But how do I detect that for sure and how can I fix it with out starting over? I've gone through and added data to one field in the form at a time to try and narrow down what field is causing the problem, but no matter what i get the same error. Is there a way to find out exactly what field is causing the error? Thanks for any help you can offer!

Alicia

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Complex Duplicate Entries - How To Flag Up Etc.

Jan 8, 2007

Hi everyone,

I'm aware of the wizard in MS Access that creates a new table containing duplicated entries that have been entered under one column, however, my problem is slightly more complex...

A contractor of mine has recorded information from CCTV surveys of sewers (not very glamorous I know!) in a Microsoft Access database. If you can imagine - the camera can be pushed along a pipe from both ends. Sometimes, the survey is abandoned in one direction and then repeated along the same length of pipe but from the other direction. The database contains (amongst other columns) a "start manhole" reference and a "end manhole" reference.
eg:

16014

As you can see, the information contained by both entries will be the same (as they are the same length of pipe). Therefore, I was wondering how I could get MS Access to:
1. Recognise these 2 entries as duplicates
2. Create a table that hides the duplicated entry with a shorter "SectionLength" value.

Many thanks in advance.

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Inner Join Returns Duplicate Entries?

Aug 29, 2007

I'm using a pretty simple inner join on two tables but the some of the same results are showing up twice. If I just remove the inner join all the results are uniquely present. For some reason the inner join creates about 10% more records that are all duplicate entries. Any idea what might cause this? :confused:SELECT products.product_nameFROM products INNER JOIN categories ON products.category = categories.category_nameWHERE ((products.X)=True);

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Combo Boxes And Duplicate Entries

Aug 17, 2005

Hello

I am trying to get a 2nd combo working from the first .

I have a table called Keystage (tblKeystage) and I have also named my 1st combo cboKeystage. then by following the vba below I created another 6 tables with corresponding names and combo's.

Private Sub cboKeystage_AfterUpdate()

On Error Resume Next

Select Case cboKeystage.Value
Case "Foundation"
cboYear.RowSource = "tblFoundation"
Case "KS1"
cboYear.RowSource = "tblKSOne"
Case "KS2"
cboYear.RowSource = "tblKSTwo"
Case "KS3"
cboYear.RowSource = "tblKSThree"
Case "KS4"
cboYear.RowSource = "tblKSFour"
Case "Post16"
cboYear.RowSource = "tblPost"

End Select

End Sub

The combo boxes both work, brilliant. My problem is that when I enter another record and make a selection from the 1st combo box, it changes all the records.

Could somebody please help.
Thanks
Wong

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Duplicate Field Entries Ecords

Aug 16, 2007

I have a table that contains doctor information including their license number. This came from a worksheet that tracked referrals from last season. I need a query that will show me only those record that have a unique MD License number. In other words I only need to see the 5-600 doctors out of the 2420 referrals in the table. Once I get the query of unique MD's I can create a report for the salesmen to use to contact them for the upcoming year.
I know this is probably simple but I can't find the solution.
Thanks in advance.

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Queries :: Number Of Duplicate Entries?

Jun 25, 2014

I'm trying to use access to identify how many times an indiviual appears in my database. I've got a large file which gives me all referrals, each referral comes with two identifiers, one unique to the person, another unique to the referral. This means that the person unique number may be repeated multiple times (if a person has more than one referral) but the referral number would be different each time.

I've run a query to identify the duplicates, i.e. the records where the person unique identifier is repeated. What I am trying to do is work out now how many people have been referred twice, how many three times etc. The original query looks something like this (but on a much bigger scale).

Person Referral
1 A
1 B
1 C
2 D
2 E
3 F
3 G
3 H

What I'm after is a query that will tell me that two people were referred three times (1 and 3) and that one was referred twice (2) and so on.

I'm on Access 2010 if it makes any difference.

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