How To Find Duplicate Entries Across 2 Columns In Access And Line Them Up
Nov 16, 2012
There is an issue that I cannot resolve in MS Access:
I have a large files with multiple columns that has 2 columns that randomly contain duplicated data.
I would like to filter out the duplicated entries in these 2 columns without spoiling the data integrity - and so the duplicates appear on the same row.
I think what I want it pretty much like conditional formatting in excel, but unfortunately the file size is really large to be filtered in excel.
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Aug 26, 2013
I have a form where a user can select from a listbox (pulled from a database) and "Add product" - it then goes into a Textbox, each taking a new line when "Add product" button pressed. Then when they press "Add Customer" those details along with other entered details gets stored in my Customer Database..
The textbox store multi-line entries in the "ProductName" field heading in database.
Is there anyway i can use a List instead of the textbox? Adding individual entries to one certain customer? I have an EDIT facility aswell so would be easier to have a "Remove Product" button instead of manually backspacing a whole product entry from another textbox (containing all products, on new lines).
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Nov 29, 2014
I have a module which reads a CSV transaction file line by line and adds the correct transactions to an access table and places the wrong ones in a logfile.Now some transactions are rejected twice there is even one rejected six times. Whereas one wrong transaction is processed only once. I am certainly overlooking something obvious in the logic but what. Here is the relevant code.
Code:
Function ImportCSVForConfederation(inputCSV, ORG)
Dim TNO As Integer, TACT As Integer, TABLE As String, TLINE As String, I As Integer, J As Integer, K As Integer
Dim FLD1 As String, FLD2 As String, FLD3 As String, FLD4 As String, LogFile As String, LogPath As String
Dim Lim As String, ITNO As Integer
[code]....
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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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Jan 26, 2005
Hello hello
I have several boxes instead of line breaks throughout my table. I would like to do a find and replace. Is this possible???
I can't seem to select the box to cut and paste it into the "find" line, which is too bad, because I might be able to get by with just replacing it with a semi-colon or something.
But, since I'm asking, I might as well go for the gold and ask how to make it show as a new line too, right??
I found in other threads how to use chr(10) and chr(13)... which I did, which created the boxes in some of the fields. (Some of the fields already had boxes). I also read where I should use vbcrlf, but I can't get that to work. In THIS thread: http://forums.aspfree.com/t38413/s.html&highlight=chr%2810%29 someone had the same problem as me, and was told to do an OnFormat Event.. and well, I'm just not advanced enough yet to figure that out. I've done modules, and sql view queries... and a lot of tweaking with the help I've already gotten here.. so I AM learning...
So... is there a way to do this? Preferably cheap and easy.
-Siena
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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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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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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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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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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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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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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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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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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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Sep 5, 2014
My issue is when there are 4 records (store numbers) for any "row" on the load diagram, the last store's information is duplicated when the report is printed. It only appears once in the table, it only appears once in the query, but when the report prints it prints two lines. It also does not include the duplicate line in the totals at the bottom of the report. This leads me to believe that the issue is in my PrintLines function which is in the modPrintLoadDiagram but I am only a beginner when writing code and have not been able to figure it out on my own.
I am attaching a version of the original database. Please open rptLoadDiagram in Print Preview and look at row 3 on the right side. Store 5449 is showing up twice but should only be on there one time.
This is the only issue holding up my roll out of the database.
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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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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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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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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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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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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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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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Mar 7, 2014
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.
I have a form (Add_New_Basket) which feeds into a table (Active_Basket); what I am trying to do is make sure that a new basket cannot be introduced with the same disc number as an active basket. The way I am trying to determine which baskets are active is that I have an end date, that is filled in once the basket has been scrapped.
Therefore I am trying to set my Add_New_Basket form to restrict me entering a new record with BasketNumber 999, if there is already a BasketNumber 999 in the table with 'EndDate' null. If there is BasketNumber 999 and EndDate is dd/mm/yyyy then it can create the entry.My form Add_New_Basket has fields ID (which is hidden), BasketNumber, StartDate (=Date()).My table has fields: ID, BasketNumber, StartDate, EndDate
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Apr 21, 2013
I've got a combo box that lists duplicates. I want the dupes removed.
I went to the Query Builder for my Combo Box and set Unique Values from "No" to "Yes" - Saved, then re-opened the form. It still lists dupes.
I went back into Query Builder and unchecked the box for the Patient_ID (Autonumber) field. I saved it, then viewed the Datasheet for the Query, and it correctly lists the data I want WITHOUT dupes.
However, when I go to Form View, the combo box lists several blank entries..
The entries come back when I re-enable the Autonumber field in the Query.
This is what I currently have...
SELECT DISTINCT Patients.FullName FROM Patients ORDER BY Patients.FullName;
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Apr 1, 2008
Hello all,
I want to create a query that looks for a manual line break in a memo field. Is there a code or some way that I can do this? (i.e in a Memo field the user has entered some data, hit Ctrl-enter to get to a new line, entered more data on the new line. I want to find the records where this has occured)
Also, on a similar note, is there a way I can deny my users the option of doing a manual break (Ctrl-Enter) in a Control in a Form? (to prevent me needing to run this query in the future)
Please advise.
tia,
Angel
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Dec 10, 2007
Im using Access 2000.
Essentially I want to find out which of the entries in my master table have matching entries in my other tables, and list the ones that do.
So if I have an entry in the master table for “productA”, and there are also matching entries for “productA” in tables “SupplierC” and “SupplierD”. I want to perform a query that will output a list showing “SupplierC” and “SupplierD” (I have A & B tables but if there isn’t an entry in them for “ProductA” I don’t want them on the list.)
I intend to use the results to populate the values of a combo box in future so I require the list to be in a single column, rather than across many columns. Does anyone know if this is possible?
My master table is called “OurProductsTable” and the four supplier tables are called “SupplierA”, “SupplierB”, “SupplierC”, and “SupplierD”.
Each Table has a primary key called “ProductID” and I have linked them together on the relationships screen.
I’m not sure if this is the proper method but I also made another field in each of the supplier tables called “CompanyName” and set the default value as the name of each supplier, so if the entry for supplierC matches the master table entry I can return the “CompanyName” value of “SupplierC”.
Here’s what I thought the code should kind of look like but I don’t know how to apply it properly in a query:
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