Solved

Access 2003 Query

Posted on 2014-03-18
3
323 Views
Last Modified: 2014-03-19
I have this table in Access 2003 that has several thousand duplicates.  I need a query that will remove the duplicates but leave a record for each PSINO and one record of the PSINO for each period from 168 to 180.
0
Comment
Question by:submarinerssbn731
3 Comments
 
LVL 36

Accepted Solution

by:
PatHartman earned 500 total points
ID: 39938122
You are not going to be able to do this with just a query unless you have some way of separating the wheat from the chaff.  The simplest method, is to copy the table structure only but not data to create a new empty table.  Open the empty table and define the unique key that will prevent future duplicates.  Then create an append query that copies the data from the original table to the new one.  You will get an error message that tells you that some records are not copied because they would create duplicates.  This is OK.  The preceding method assumes that you don't' care which of the duplicates gets saved.  If you care, you will need to somehow identify which ones you want to keep and then append only those.  I think the last two requests should be satisfied by simply removing the duplicates unless they would create new duplicates themselved.
0
 
LVL 41

Expert Comment

by:Sharath
ID: 39938656
Do you have an identity column defined in your table?
Among the duplicate records, which record you want to keep?
0
 

Author Closing Comment

by:submarinerssbn731
ID: 39939256
Great answer!  Thanks!!!
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

You need to know the location of the Office templates folder, so that when you create new templates, they are saved to that location, and thus are available for selection when creating new documents.  The steps to find the Templates folder path are …
Access developers frequently have requirements to interact with Excel (import from or output to) in their applications.  You might be able to accomplish this with the TransferSpreadsheet and OutputTo methods, but in this series of articles I will di…
With Microsoft Access, learn how to start a database in different ways and produce different start-up actions allowing you to use a single database to perform multiple tasks. Specify a start-up form through options: Specify an Autoexec macro: Us…
Access reports are powerful and flexible. Learn how to create a query and then a grouped report using the wizard. Modify the report design after the wizard is done to make it look better. There will be another video to explain how to put the final p…

749 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question