How To Delete Duplicate Records

Apr 30, 2007

Hello,

I have a table that has many duplicate records. I tried importing the table and setting the field to no duplicates but did not work. How can I delete duplicate records. The primary Id id fine I have another field that I can use. it is a BAC number that is repeated many times. Here is the table I need fixed.

Thanks

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Duplicate Records Delete

Jan 14, 2008

On the below data I need to delete records where dep is blank or the same for the same ID. So I need to find and del recNr. 1,4,5. Any help will be appreceated!Thanks

recNr IDDep
1 ABX
2 ABX 1234
3 ABX 1258
4 CDE
5 CDE 7895
6 CDE 7895

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Delete Duplicate Records

Feb 2, 2006

Help please!
I have a form (frmHalfTab) built on a table (tblHalfTab2) that has existing data in it. In the very near future, I will be uploading additional data to this table via excel cut and paste. What I want to do is search for and eliminate duplicate records that have duplicate data in TWO fields, (MemberNum) and (MBRDrug), so that if MemberNum is "10" and MBRDrug is "Zzz" for more than one record, the duplicated records need to be deleted, OR a check box needs to be checked automatically for all the identical records, the original and the duplicate(s). I wanted to put this behind a button, if possible.

Now, I have created a duplicate query that will find the duplicated records, but I'm not sure how to use it to get rid of the duplicated records or check the checkbox appropriately. Should I ditch this query and choose a different route, or am I on the right track? Thanks in advance for your help.:confused:

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Apr 12, 2012

I have two tables that have duplicate order numbers. I would like to compare the first table with the second and then delete the records from the second that match.Can I set this up in a macro and run it every day?

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SQL Code To Delete Duplicate Records

Feb 19, 2013

I have a table that has 1335 records in, and columns names, Title, First Name, Surname, Address, Address2, Town/City, County, Postcode.I want to know how to write a SQL code, which will locate all the duplicates that match the First Name, Surname and Postcode and delete them, but keeping 1 copy of the duplicate.I have created a query to locate the duplicate records, and I have put the SQL code there. I tried changing this, however it would delete all the records, so I am not to sure what to try...

SELECT SurnameSearch.Title, SurnameSearch.[First Name], SurnameSearch.Surname, SurnameSearch.Address, SurnameSearch.Address2, SurnameSearch.[Town/City], SurnameSearch.County, SurnameSearch.Postcode
FROM SurnameSearch
WHERE (((SurnameSearch.[First Name]) In (SELECT [First Name] FROM [SurnameSearch] As Tmp GROUP BY [First Name],[Surname],[Postcode] HAVING Count(*)>1 And [Surname] = [SurnameSearch].[Surname] And [Postcode] = [SurnameSearch].[Postcode])))
ORDER BY SurnameSearch.[First Name], SurnameSearch.Surname, SurnameSearch.Postcode;

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Delete Duplicate Records Or Blank Records

Mar 19, 2007

I want to find duplicate records based on FirstName and LastName and delete the duplicate. Also, I want to delete any records which have a blank FirstName and LastName.

How can I do this?

Thanks,

Dave

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Delete Duplicate Records And Unite Results

Sep 24, 2013

I know this probably has been asked a 1000 times but I don't seem to be able to edit the uncommented VBA-codes I found online to work on my database.

I already ran a query that shows me the duplicate records of my original table. Now I m looking for a way to

a) delete all duplicate records (not just specific ones by using a criteria) and
b) unite the unique records (result of a)) with the original ones that were not displayed with the "find-duplicates-query" ....

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Tables :: Detect / Delete Duplicate Records In A Table

Apr 22, 2014

I'm wondering if it's possible to create a Query / Macro / VBA or whatever works, to detect the duplicate records in a table and delete them with the push of a command button. Or, even to do this automatically when the database opens using an AutoExec macro or something ?. I'd like for one copy of each record to be left intact in the table.

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Delete Duplicate Records Based On Multiple Criteria

Sep 21, 2015

I need developing a new delete query criteria to add onto existing delete duplicate queries for deleting duplicate values. I need the new delete duplicate query to take precedent over the other two so that those values retained in the first query are kept retained after going through the second and third delete queries. Attached is a document laying out the request.

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Another Duplicate Delete Question...

Mar 22, 2006

Have searched the forum but cannot find a suitable answer...

I have duplicates in my table that I need to delete but leave one existing record, e.g.:

ID Part Family Colour Cost
1 123456 HHH M98765 12.99
2 123456 HHH M64975 12.99
3 123456 HHH E79461 12.99
4 123456 HHH G13467 12.99
5 123456 HHH M98765 12.99

In the above example i would want to delete records 2-5 (based on Part and Family, even though the colours are different) leaving one there. If I run the find duplicates and then change that to a delete query then it deletes them all.

This needs to be done via a query as it is done in automation, so manually copying the table structure and applying primary keys to the fileds etc. is not an option.

Any bright ideas?

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Another Duplicate Delete Question...

Mar 22, 2006

Have searched the forum but cannot find a suitable answer...

I have duplicates in my table that I need to delete but leave one existing record, e.g.:

ID Part Family Colour Cost
1 123456 HHH M98765 12.99
2 123456 HHH M64975 12.99
3 123456 HHH E79461 12.99
4 123456 HHH G13467 12.99
5 123456 HHH M98765 12.99

In the above example i would want to delete records 2-5 (based on Part and Family, even though the colours are different) leaving one there. If I run the find duplicates and then change that to a delete query then it deletes them all.

This needs to be done via a query as it is done in automation, so manually copying the table structure and applying primary keys to the fileds etc. is not an option.

Any bright ideas?

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Keep One Of Many Duplicate Rows, Delete The Others

Aug 7, 2007

I have a list of projects and am creating a query that tells me their duration based on beginning and ending dates. These beginning and ending dates can be edited by the user, and frequently, there are multiple beginning dates. When I query the projects, instead of getting unique project numbers on the left hand side to create unique rows, I get many of the same projects with different start dates. I would like to use the FIRST start date only for every project and not have multiple rows with the same projects being counted multiple times.

Is there any way to delete the excess rows and keep the original row? I've read a lot about using DISTINCT and UNIQUE INDEX with SQL but it seems as though these are only available for tables and not queries. Bright ideas, anyone?

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Dec 14, 2004

Hello,
I have two related table: table_Company and table_contact. Now i have:
Table_Contact Table_Company
James Bolton -----------> MacDonalds
Hellen Kidman ----------> MacDonalds
Now, i wanna have one "MacDonalds" in my Company table, and delete the others "MacDonalds" and still have the relationship between my contacts and their company.

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How To Delete Duplicate Values In A Table

Mar 5, 2006

Good morning all!
I have a problem, I have a contact list table in my database such as name, addr, company, street, country etc. The problem is that I have multiple duplicates of the same data.
How do i delete the duplicates? Is there an SQL query that I can run to delete? How do I do it. Please help. Thanks a bunch!

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Sep 1, 2005

Hi,
I have table tblSample (IdNo, SCode, StaffNo) where IdNo is AutoNumber. This is sample of data,

IdNo SCode StaffNo
10 ABC 50424
11 DEF 50424
12 GHI 50424
21 ABC 50424
22 DEF 50424
23 GHI 50424
26 ABC 50424
27 DEF 50424
28 GHI 50424

Is it possible for me to delete records from IdNo 21-23 and IdNo from IdNo 26-28. Any idea? Thanx in advance..;)

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Jun 12, 2013

I am trying to create a query to find duplicates and delete the duplicates. The result will eventually be used in another query (append query) to update a table.I have a table with 4 columns lets say for simplicity they are A, B, C, D

I want my query to find duplicates within B and deleting them. The catch is before deleting them I need to look into column A to ebsure they are actually duplicates. Example below

Example
A B
John Doe Tires
John Doe Wipers
Allison Doe Tires
Allison Doe Tires

As you can see from the above Tires is a duplicate and need to be deleted.

A B
John Doe Tires
John Doe Wipers
Allison Doe Tires

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Nov 18, 2014

The charity that I volunteer at has a web site through which they receive donations.

Most of the COMPANY names that they receive through their website are JUNK.

I would like to have a system to delete duplicate company names:

A = first programmatically delete all company names that are GOOGLE and this will remove about 60% of their spam
B = next group all Duplicate Company names, which will be removed manually

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May 29, 2014

In my simple database (attached), I need to mass duplicate Tasks and their Notes.

I have three tables: tbTasks (PK: Task_ID), tbNotes (PK: Note_ID), jtbTaskNotes (FKs: Task_ID and Note_ID). jtbTaskNotes is my many-to-many junction table that ties Tasks to Notes.

The main form (fmTasks), bound to tbTasks, has a subform (sbfm_TaskNotes) that displays notes associated with each Task. On themain form,you select which Tasks you want duplicated via a checkbox. The append query (quCopyTasks) will duplicate all tasks that have the checkbox checked. All good there. However, I can't figure out how to also duplicate each task's Notes.

I found Allen Browne's solution [URL] ....., but that only handles duplication of one record at a time, whereas I need to duplicate many records at a time (sometimes 10+ records). How do I go about duplicating multiple Tasks and their associated Notes?

Before you ask "why are you duplicating records?": There are times when tasks need to be re-accomplished and therefore need to have a new record. It's easier to duplicate records than it is to hand-jam everything again.

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Qry Results Show Duplicate Records, Records Are Not Dup In Table.

Nov 16, 2004

I have built a qry that initially shows the correct information. For example.

tblContent has 289 records with a Type = Class.

I built a Query to select from tblContent Type = Class and I get 289 records. I add additional criteria of Progress <>"Not Scheduled", I then get 206 records. I then add additional criteria Last Name <>"Demo" And <>"Care" And <>"Support". This brings up 200 records, but the query appears to duplicate each record 3 times. I do not have 3 of the same types of records.

The SQL Statement is below

SELECT tblProfile.LoginName, tblProfile.FirstName, tblProfile.LastName, tblProfile.Organization, tblProfile.CostCenter, tblContent.Title, tblContent.Type, tblContent.Code, tblContent.[Date Assigned], tblContent.[Date Started], tblContent.[Last Accessed], tblContent.Progress, tblContent.[Date Completed]
FROM tblProfile INNER JOIN tblContent ON tblProfile.LoginName = tblContent.LoginName
WHERE (((tblProfile.LastName)<>"Demo" And (tblProfile.LastName)<>"Care" And (tblProfile.LastName)<>"Support") AND ((tblContent.Type)="Class") AND ((tblContent.Progress)<>"Not Scheduled"));

The qry is named qryPhysical Class. I have provided the link to view the database. Can you help me?

http://briefcase.yahoo.com/turnerbkgabrobins

Thank you in advance for your assistance.

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Feb 7, 2014

I have a table InvPrice and Updated Pricing

Need to delete all records from InvPrice that Match UpdatedPricing

InvPrice.StockCode = UpdatedPricing.StockCode
InvPrice.PriceCode = UpdatedPricing.StockCode

I have tried something like this...

Dim dbs As DAO.Database, sql As String, rCount As Integer
Set dbs = CurrentDb
sql = "DELETE * dbo_InvPrice Inner Join (dbo_InvPrice Inner Join UpdatedPricing on dbo_InvPrice.StockCode = UpdatedPricing.StockCode ) ON on dbo_INvPrice.PriceCode = UpdatedPricing.PriceCode "
dbs.Execute sql, dbFailOnError

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Duplicate Records

Jul 5, 2005

pls can someone point me in the right direction

have searched through the forums.

i have two fields Forename & surename i need to prevent duplicate records if the forename and surename match another record.

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Oct 24, 2006

Hi

I have a table (which is populated by people filling in a form) which contains two fields:

Section
WeekCom (e.g. week commencing)

I want to make sure that the form will not allow someone to make a double entry. For example, if Sally goes in and says enters "Benefits" as the section and "WeekCom" as 15/10/06, and then Ben tries to do the same - the form will not allow Ben to enter it.

How do you do this please? The table does not have a primary key at the moment....is there any way of doing it without setting one of the fields as a primary key?

Thanks

Maria

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Apr 9, 2007

I Need to run a query that will not show duplicate records.

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Does anyone have any ideas?

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Apr 30, 2006

I have a form in Access which has event date and then also an event time slot such as "Morning, Afternoon, Evening" . I need to make it so that you cannot have a duplicate time booking, i assume i will need to code some VBA but if anyone could tell me what it would be much appreciated. Thanks

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Feb 7, 2008

i m new user to access i just wanna know how can i count duplicate recodes for example how many time
record repeat in one column


waiting for ur quick reply thanks

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Jan 8, 2007

I have a query of records that are not related to records is the secondary table. I want to delete these records but when I select the records and click delete I get the confirmation to delete answer to delete them and all the records disappear. When I run the query again, all the records are still there. Does anyone know what is happening? This is an access front end that connects to a SQL server database.

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