I have a table which has duplicate values and i need to delete them, how do i do that?the table fields are
field1 field2 field3 Field4
1 a aa bb
1 a aa bb
1 b bc ab
2 a aa bb
2 a aa bb
I want to delete the ones which are bb in Field 4 and keep only bb value, how do i do this?
Thanks
Hi guys,
I have a question I've been trying to figure out with no luck. I have 2 fields, companyname and zip, these 2 fields may have duplicate values or they may be uniquei.e.
companyname zip
billybobs 68135
dilberts 68137
billybobs 68135
what I need to do is delete all of the duplicate records where both companyname and zip match. Is there a way I can do that with a query?
Any help is greatly appreciated
Thanks
James
I am having problems deleting various rows from an SQL table, the message coming up is "The row value(s) updated or deleted either do not make the row unique or they alter multiple rows (xxrows). Any Suggestions?
View 1 Replies View RelatedWe are working on an Access (2007) database that is on a SharePoint Site (2007).
Currently the form is operational, but there is one last thing that would be nice to have.
The table is "Updated Headcount" which contains "EMP_ID" which are unique numbers stored as text.
In the event a new employee is entered in the system by another user on this site we would like to prevent any duplicate "EMPID"s from being entered and saved on the SharePoint, we would also like to alert the user and prevent the data from being saved.
All data is currently bound, so once the user makes a change it is made, no submit button is required.
We are running into some difficulties in doing a dlookup from the value entered and comparing to a column in the table.
TABLE - UPDATED HEADCOUNT
COLUMN in UPDATED HEADCOUNT - EMPID
FORM CELL user will input an EMPID - newEMPID
FORM CELL used for a dlookup to compare what user has entered to what is already in the table - duplicateEMPID
So below is what we are trying to do, we are sure there are a few commands missing....
=IIF(newEMPID=dlookup([UPDATED HEADCOUNT]![EMPID]), newEMPID, "Error, EMPID already exists")
Hi,
I currently have a table in Access that contains over 2000 records, with a total of 20 fields (although some records do have null values for certain fields). Some of these records are nearly identical to one another and differ only in one or two fields. Others, however, are exact duplicates. Is there any way I can quickly go through the table and delete those records which are duplicates but, at the same time, ensure that those which are only similiar aren't deleted?
Thanks for any help!
i have a data base with a primary key but some records have been added from a excel data base and now the data base has duplicate records with different primary keys. I do a Query looking for duplicate records based on a field not the the primary key. There are 315 out of 22000. I can sort the table and then manually delete the dups. The Query does not allow deleting records so finding the culprits in the full Data base is time consuming. How can i delete the duplicate records using a query? Is this function available hidden someplace in the guts of Access? Seems like this would be a frequent problem. The Microsoft forum addresses this problem and the only viable solution is the manual method, when they get to the Query method it looks like they just forgot what the subject was and tell you how to delete one record if you know what the criteria is. If two non Key fields are Identical then i want to delete one of the records.
View 3 Replies View RelatedI have an Access table with a number of records which refer to the same [InvoiceNo] but with data in different fields. Normally, my database works like this:
1)Import data from Excel File to tblMain in Access
2)Import data from Excel File to tblVendorLine in Access
3)Import data from Excel File to tblDunning in Access
4)Query is sorting from two first tables only records that refer to the third one (by InvoiceNo)
5)We have only items from tblDunning with data from other two tables to be send (mail to the vendor).
The point is, that when I have relation between those three tables, I receive only few records, but sometimes - for example - tblDunning refers to 5 records in tblMain and to 7 records in tblVendorLine - but there is only 4 records related between tblMain and tblVendorLine, so query shows me only two records. Ive made a query for each table (tblMain & tblVendorLine - relation with tblDunning). Then make one query of those two queries. It append data to new table tblDunnAll
So for example the table would look like this after
Vendor | InvoiceNo | CoCode | Status | Clearing_Date | PBk
100000 23333 GB11 23/12/2011
233332 121212 GB18 16/12/2011
233332 121212 Complete K
134444 777777 GB12 Complete
100000 23333 GB11 Complete K
What I'd like to have is a table with:
Vendor | InvoiceNo | CoCode | Status | Clearing_Date | PBk
100000 23333 GB11 Complete 23/12/2011 K
233332 121212 GB18 Complete 16/12/2011 K
134444 777777 GB12 Complete
how to go about merging the data for each name into one record. There are lots of very useful posting about using SQL to delete duplicate but I can't find a posting with addresses this issue.
I'm trying to determine the SQL to return only those records in a table which have duplicate values in each of two fields, but different values in a third field. Here's an example:
Code:
AcctNum FoodType FoodClass
------- -------- ---------
A123 Apple Fruit
A123 Apple Fruit
A123 Grape Fruit
A456 Potato Vegetable
A456 Potato Perishable
A789 Carrot Vegetable
A001 Banana Fruit
For the above table, I'm trying to return records which have multiple entries for AcctNum + FoodType, but DIFFERENT values for FoodClass. So for the above table, the query would return:
Code:
AcctNum FoodType FoodClass
------- -------- ---------
A456 Potato Vegetable
A456 Potato Perishable
It returns these two records because there is more than one record with for the AcctNum + FoodType (i.e. 'A456' + 'Potato'), but DIFFERENT values for FoodClass (i.e. one record has 'Vegetable' while the other has 'Perishable').
hello friends,
I have written an insert query but sometime it does not work properly and leave some column blank. I want to write a query which should check for the blank columns and delete these records.thanks in advance
I have an unbound text box. I put a value, run an append query and append the value to the table. I want to know if I can delete the value in the text box automatically when the append query excutes. I am using a macro to run the append query.
Thanks.
How do I delete values in an array? I want to reuse that array but first I need to delete its values so I would start with Arr(0) rather than where I stopped off with the last loop at Arr(10) [assuming the last calculation inserted until Arr(9)]
Here is my code:
Set rst = CurrentDb.OpenRecordset( _
"Select * from dbo_ProductStructure where ChildProductNbr Like '*" & txtPartNumber & "*'") 'search associated fields with user input
While rst.EOF = False
ReDim Preserve Arr(i)
Arr(i) = rst.Fields("ParentProductNbr")
i = i + 1
rst.MoveNext
Wend 'end of while loop
x = Arr
Im trying to delete values from a table based on the selected values of a listbox. The listbox values have a hidden column which related to the ID on the table to which I am trying to delete from (if that makes sense).
If I use the following code:
Code:
Set ctl = Me.Results_listbox
For Each varItem In ctl.ItemSelected
CurrentDb.Execute "Delete * FROM Table1 WHERE Table1.ID = " & ctl.ItemData(varItem)
Next varItem
I get an error stating Object doesn't support this property or method.
I have a many to many relationship, and one of my tables (the junction table) has only 2 fields (BookID & AuthorID). These fields together are set as primary key, in order to avoid duplicate records. Eventually, if i will try to put a duplicate record, i will get Access error's message "The changes you requested to the table were not successful because they would create duplicate values in the index, primarykey or relationship ..."
What is the best approach in order to check whether a duplicate record is going to be created, and if yes, i will get a customised error message rather than the above mentioned default error message ?
Thanks
I need help creating a report that summarizes duplicated values.
I need to write a query that groups payments of equal amounts (duplicate values only) for each vendor together. I need to show a group header containing the vendor number and name.
I was using the Having Count(*) > 1 function but that only tells me which values are duplicates It doesn't display them. I need to display the duplicates.
-WM
is there a way to stop duplicate values appearing in a query result.
i querying a table but i dont want to see the same value twice ca i prevent this?
i have a sub form which on the click of a button sets 4 fields
Private Sub Command8_Click()
LastPaymentDate.Value = Date
NextPaymentDate.Value = Date + 7
AmountPaid.Value = [Form_Frm_Customer]![Payments]
[Form_Frm_Customer]![Payments Due By].Value = Date + 7
End Sub
It updates all the fields fine but i keep getting the error 'the changes you requested were not successful because they would create duplicate values'
I have checked the table and all fields are set to allow duplicates.
Cant figure it out.
Hi,
I have a form in a database for our products (doors). I have a button that duplicates one of these records (all new products are based on standard template records).
When this record is created a new product number is produced by the system which was the number of the original (template) record plus the customer enquiry number.
I want to be able to warn the user if they are trying to save this newly created record with a product number that already exists so that they can alter the number to be unique. It will also warn them if they re-number an existing record to another already existing product number. Since the field is defined as unique, at present the system says absolutely nothing and just doesn't save the newly created record which seems is a touch annoying!
I have tried several things with dlookup, dcount arguments but can't seem to get anything to work.
Hopefully someone here can point me in the right direction?
Thanks in advance
John
hi again,
I'm building a search function into my database and everything's fine apart from the fact that i have duplicate values in my combo boxes.
For example in the combo box 'market' i have many fields named Europe.
How do i replace these repeated values with one distinct value?
Cheers
Can someone tell me how a primary key in the attached can be set on the index to duplicates OK yet, when you click on the indexes icon on the toolbar, the UR is set to be aprimary key..
View 1 Replies View RelatedIs there a way that in a query from several tables you can choose to exclude duplicates of a specific field?
In the query I'm trying to create I am going through and counting the number of customers in a certain time frame. I don't want to count a customer each time they buy something though, I only want to count them once. The dates of their purchases are held in a seperate table for purchases and the customer information is held in a customer table. The information I need is in both of these tables and each customer has an ID number which is how the two tables are joined.
When I tried using the DISTINCT code it still brought in all the purchases because the customer bought things on different dates. The only way I have ever used this, however, is to write SELECT DISTINCT at the beginning of the SQL instead of just SELECT. If there's another way to use it to do what I need I will try it as long as you tell me what it is.
How can I set up the query to bring in all the information I need but not duplicate the ID numbers?
Thanks in advance for any help I get!!!
I've got a query where a particular field can have duplicate entries. I do NOT want to limit the properties to only have unique values. On the contrary, I very much WANT to keep those but I DO want to have something indicating that the duplicates are there. I can create another Y/N or true/false field to indicate this if needed.
View 1 Replies View RelatedI have a table called Department. One employee may belong to more than one department. So I created three tables, Emptable, Depttable, and DeptDatatable. The Emp table and The dept table both have a primary key. Emp# in Emptable to Emp# in Dept Data Table. Dept# in Depart Table Primary key to foreign key in Dept# key in Dept Data Table. In other words:
Employee One to Many Department Data both using Emp#
Department One to Many to Department Data both using Department#
I have created a form for data entry for the young lady that enters the data. Right now, there are two entries in the department data for any employee that belongs to more than one department. My question is how do I create a form that allow the person that is entering data to only enter the employee in once and enter multiple values into the department field. How would it create then two entries into the Dept Data Table? I have been reading up about fields that allow duplicate data but this treats the fields like memo fields. I need to draw queries from Departments, so not sure if that would work. I also need the Department to be a list that they choose from.
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!
I am using a combo box to select client records. The problem I am having is that there are several clients with the same last name.
The query behind the combo box sorts on Last Name, First Name.
When I (as an example) select the second listed duplicate name from the combo dropdown, The form is populated with the data from the first duplicate name. (example Jones, John or Jones, William).
How can I make sure that the selected name will populate the form?
Thanks
I am getting the error in a grid which has combobox.
This combobox allows only to select unique values from the list.
Whenever i selects the same value in another combo which is already selected in the grid, its shows the popup with the below message and makes us not to click anywhere else in the application.
"The changes you requested to the table were not successful because they would create duplicate values in the index, primary key, or relationship.Change the data in the field or fields that contain duplicate data, remove the index, or redefine the index to permit duplicate entries, and try again".
And when i delete the duplicate value selected in combobox it shows the popup with this message "Index or primary key cannot contain NULL value".
I simply wants this :
Whenever user selects duplicate value, message must be displayed and user comes out from that combo.
Please help urgently.
Hi - it's been a while since I did much access and am trying to help someone out and have got into a pickle! A quick job has turned out to be a lot more complicated! Plus I'm having to use *spit* Acc 2k.
When I go into frmHighCostDrug (from the "add new drug episode" button on the frmPatient) I often get the message "The changes you requested were not successful because they would create duplicate values in the index, primary key, relationship etc etc."
Now, I didn't think I'd forgotten that much. I've got primary keys, values in the table set to Null, relationships set and ref integrity set and cannot for the life of me see why this is happening.
I know though, that one of you will say "oh it's that" and point it out and I'm going to feel completely stupid, but at the moment, I don't mind! I really can't figure it out.
I've attached db - it's in Acc2k and I tried to do a copy Acc'97 for those who don't have it but it caused no end of problems. Came up with messages that this form contains data that Access doesn't support!!!! ??? :confused: If I can sort it I will.
If anyone's got any ideas, I'd be v grateful!
Tnx
Ally