Removing Duplicates From A Query

Aug 14, 2006

I am running a query to return records from a table. I want to eliminate records from the query if the values contained in one field are duplicated. I have tried using the DISTINCT keyword but it only works if the entire record is unique or if I was retieving just one field

Any suggestions appreciated

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Access 97 - Query Help - Newbie - Removing Duplicates

Jan 25, 2007

Hi,

just finding my way in Access 97 with no real support. I have made a query that creates duplicate records when I only need to see one for a certain criteria (lets say criteria X). This is due to the data feed involved in making the query where criteria X is found in numerous records.

What I want to display is only one record per entry containing an exact match for criteria X.

Finding it hard to articulate this but I would need something that defines:

If criteria X is the same, just display one record.

Hope this is somehow clear as I am struggling a bit. Would be gratefull of some help.

Thanks

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Aug 19, 2004

Hi,

I'm running MS Access (2002 SP-2)

I have a table that has the following columns in it:

Sent NBR (text) / Sent Date (date/time) / PIC (text)

It's a customer listing of our customers and which long distance carrier they have selected. Unfortunately my data also shows OLD customers that no longer own that phone number. Because of this, various phone numbers are listed numerous times, but only the Sent NBR with the most current Sent Date is the one I need to see. The others are irrelevant and need to be deleted. I'd manually delete the duplicated Rows but I have over 115,000 duplicates!!


Do you guy know of a way to eliminated the duplicates for each Sent NBR and only show me the Sent NBR's with the Most current date?

Any help would be greatly appreciated!

Scott

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Dec 12, 2011

I have data that I want to combine. However the separate data sets have some duplicates.

Let's say it is Customer Num field.

What I am saying is I am trying to combine the data sets to make a table with Customer Num and Customer Name.

I want to eliminate the duplicates. What is the best way to do this? Is there a feature in Access for this?

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Aug 9, 2013

I have a table with few Employee ID re-appearing over and over again for two different job status.

Data Example

EMP ID Job Code Emp Name Country Job Status Time Spent (In Hrs)
222 9250 XYZ ABC Complete 6
222 1059 XYZ ABC InComplete 12
222 5050 XYZ ABC Complete 7
222 1050 XYZ ABC InComplete 9
111 2750 MNM IJK Complete 2
111 2150 MNM IJK InComplete 3
111 6550 MNM IJK Complete 7
111 8250 MNM IJK InComplete 9

I need an output which merges the data based on Emp ID, however, adds the time spent for completed and incompleted job status in 2 rows.

Output Requirement:

EMP ID Emp Name Country Job Status Time Spent (In Hrs)
222 XYZ ABC Complete 13
222 XYZ ABC InComplete 21
111 MNM IJK Complete 9
111 MNM IJK InComplete 12

Which query to use? I use Access 2010.

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May 10, 2005

High everyone I've had a look around the FAQ's and other threads but haven't been able to find what I'm looking for.

I have a table that contains two fields, one being 'part number' and the other being 'quantity'. Unfortunately there are multiple duplicate 'part numbers'. I am looking at keeping only one instance of the duplicate 'part numbers' but at the same time I want to add the 'quantities' together to keep a running total.

For example:

Before
Part Number Quantity
a1 1
a2 2
a3 2
a1 1
a2 1
a1 4
a1 1

After
Part Number Quantity
a1 7
a2 3
a3 2

Any help would be greatly appreciated.
Cheers

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Jun 17, 2013

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It collects data fine but when a student signs in and out a second time there name is duplicated in the 'sign out' drop down list. The student must select the right name out of the duplicates otherwise it wont record.

Im just wondering if there is some sort of fix to this.

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Dec 23, 2014

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Oct 3, 2005

I have a date field that shows the date like 12-Sep-05 (medium date). I have a report in which the date has to display without the placeholders (e.g., 12Sep05).

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Apr 24, 2014

Im trying to write a query that shows all the container movements. Yet when I run the query qryFullHistory I get a duplicate value for container Off Island. Ive tried adding some criteria that says that the DateRequested has to be between the ImportDate and ExportDate but that doesnt seem to work. There are duplicate entries for container Off Island in tblContainerDetails as the same container has arrived and left and then returned on another voyage. Yet there is no entry for the second voyage in the tblMEMRContainer.

A brief description of the tables is:
tblMEMR Movement requests details
tblMEMRContainers the containers that were moved on the movement request. There can be more than 1 container for each request.
tblContainerDetails details and dates for the container when it arrived and when it left

There are other tables but these are the 3 that are used in the query.

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Jan 28, 2013

I am in the process of making a database and basically I have everything done but this saving, loading and adding/removing part.

Would it be possible for me to allow end-users to run queries that they could save, load, add to the existing table or remove from the existing table?

When I say Add/Remove what I mean is could a user of the database run a search of every customer in the state and then remove everyone in County X or on the other hand could they run a search of every customer in the state and then add every customer in a neighboring state.

Kinda like layers and again I have all of the criteria set up I just need the Save, Load and Add/Remove buttons on the form. I should add that I do not want users to save over the main table I want them to save it as there own text file they can upload later.

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May 11, 2015

I have a query that produces a set of rows that contain product IDs and dates (sent). What I want to do is filter out rows that share IDs with another row such that I keep only one row which has the most recent date. As an example my query might contain the following two rows:

DATE ID
01/01/2015 1
02/01/2015 1

What I want to do is filter my table and under the condition that ID #1 appears more than once only keep the row with the most recent date.

I'm unsure what the easiest way to do this would be (or how to do it at all).

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Feb 12, 2008

Hi this is my first post... so hi all :)

ok what i have is a table with contact details 900k plus

there are about 90k of which are duplicates.

this is the basic feilds that are important in this case.

Id, data_source, data_recived, data_code,

what i want is to have a table with unique records (no dups in data_code)

this table will look like this...

Id, data_code, Num_dups, dup1_source, dup1_date, daysbtw_Dup1_dup2, dup2_source, dup2_date, daysbtw_Dup2_dup3 ,dup3_source, dup3_date, daysbtw_Dup3_dup4 ,dup4_source, dup4_date,

I know there is no more than 4 dups of each record.

what i want from this is a table that will give me a record of how many dups for each record then all the dates that they were added and the date between each record entry.

if anyone can help it would be great .

thanks in advance.

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Jan 28, 2015

I'm creating a job/timesheet database and have a problem...

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There are then various tables that support the main table, which provide actual employee names etc.

I want to produce a query that provides the number of hours undertaken on each day of a particular week for each employee. So I'd have one row for each employee from the employees table, then a field for the sum hours for Monday through Friday.

The way I was going about this was

- to create five query's for the main timesheets table that would limit the entries to the five days in question - Monday-Friday. That worked fine.

- to then create a query that takes the employee name and using each of the five day based queries perform a Sum Total on the time field to give me the total hours worked for each day for each employee. That also worked fine, but the trouble is it removes any null values. So, if I only include the first day there might be 80 employees listed, but when I include the second day as well that goes down to 72 - presumably as 8 employees who entered timesheets for day 1 didn't for day 2. By the time I add all five days, I have almost no employees. I assumed that there would be a query level property to set, but i can't see one.

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Hello all,

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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");

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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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Dec 8, 2005

Hey, all! Thanks for helping, here is my situation.

I have a table with about 70,000 records that have duplicate Address field values. The rest of the field values for those records are different. When I do a find duplicate querry I get the result that 17,000 records have the same address. However, when I do the append qurrey as instructed here: http://support.microsoft.com/?kbid=209183 I get a total of only 600 records in the new table. I have tried deleting all of the indexes for both the new and old table, with no luck.

I'm using Access 2000 on XP Pro.

If anyone could help with this I would greatly appreciate it!

Thanks

Will

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Aug 23, 2005

I have a table in a healthcare patient database that stores Admitting Number, Scan Number, Last Name, and some other fields detailing the scan. Each patient can have multiple scans and I'm trying to design a query that lists how many scans each patient has had by finding all the duplicate admitting numbers. I'm using this SQL statement:

SELECT MultScans.Admitting_Number, Count(MultScans.Admitting_Number) AS Num_Of_Scans
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Apr 4, 2006

Please help. I am having difficulty understanding why a subform is showing duplicates despite using SELECT DISTINCT for its query. I have looked all over the forum but am still quite confused.

I think my database is normalised but this may be the problem and can attach it if necessary.

My query is as follows

SELECT DISTINCT StudentAndCourse.ClassID, StudentAndCourse.LevelID, StudentAndCourse.StudentID
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Hello,
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Mar 25, 2008

Hi everyone.

I have a query linking 2 tables. The idea of the query was to show our longest serving customers. The one table contains CustNo, Address details, etc and the second table contains AccNo, CurrBal, AccType, CustNo, etc etc. (note the bold fields are the primary keys). However this is bringing back results on account level rather than customer level, i.e CustNo 3 might Have AccNo xxxxxx, AccNo xxxxx1, AccNo xxxxxx2. How do I get it to show the 'oldest' account for each customer. So it will only show each customer once and that customers oldest account. Heres the SQL for the query. Hope someone can help. Thanks

SELECT DBSINV97.DateOpen, DBSINV97.AccNo, DBSINV97.CustNo, DBSINV97.PostalName, DBSINV97.CurBal, DBSINV97.AccType, DBSINV97.DateClose, DBSCUS01A.Title, DBSCUS01A.Initial, DBSCUS01A.Surname, DBSCUS01A.Street, DBSCUS01A.District, DBSCUS01A.Town, DBSCUS01A.County, DBSCUS01A.Postcode

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Mar 26, 2008

I've been researching and reading about how to eliminate duplicates in my Query, but all the suggestions don't seem to work. Here is my problem:

I want to create a Query with information from 2 Tables. Ultimately, I want my Query to be a malining list that I will be sending requests to. But, I want only the names, addesses, etc. of the people who fit certain criteria (info. stored in several different fields of the two tables). So, if a person matches two of my specified criteria, they appear twice in my query. Or if they fit all the criteria, they might appear 5 or 6 times. I want each name and address to show up once, even though the person may fit into several criteria. Does this makes sense?

I've tried typing "DISTINCT" after "SELECT" in SQL, but that didn't do anything. I've also tried changing the "Unique Values" to YES, but that didn't work either.

Sorry if it's unclear, but I am very new to Access! :(

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Nov 24, 2004

Hello
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Jan 9, 2006

Friends,

I have a table with 3 fields:

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AMOUNT2

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Private Sub intgunNumber_BeforeUpdate(Cancel As Integer)

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I have a Duplicates Query that extract the following information from my Table

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