Solved

Selecting the best record in a subset in a table

Posted on 2014-01-22
3
303 Views
Last Modified: 2014-01-22
Access 2010

I have a table called "Belts"

Fields:
Item-Text
Mfrnum-Text
Mfrname - Text
Score-Text
REDBOOKPAGE-Text
Tag-Text


In Table I have repeating values in the Mfrnum field when a filter is in place for the Mfrnum field for a particular value like as shown.
In this case i'm filtering "1000H075" in the table.

Example of a filterWhat I need: based on the "Score" field. What ever score record  has the highest value in the "Score" field. Then a "Y" gets placed  in the "Tag" Field for only the highest value score.


In the case where the highest value is the same pick the top records in the filter.

I'm indexing by  "Mfrnum" asc... and then  "Score"  descending in the filter.


Thanks
fordraiders
0
Comment
Question by:fordraiders
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
3 Comments
 
LVL 36

Expert Comment

by:PatHartman
ID: 39800859
If you are talking about the Tag property of a control on the form, this won't work.  Access maintains only a single instance of values for continuous/datasheet forms so setting the Tag property of a control sets it for all instances of the control.

Tell us more about what you need this for.  You should be able to find the record by sorting the records descending by the score and then adding  Top 1 to the query.
0
 
LVL 47

Accepted Solution

by:
Dale Fye (Access MVP) earned 500 total points
ID: 39800904
Tag is a reserved word, so you might want to think of a different field name so you don't have to wrap it in [ ] every time you use it.

Do you only want to do this when you filter the data, or do you want to update it for all MFRNUM in your table?

You might try:

UPDATE Belts as B
SET [Tag] = "Y"
WHERE [Score] = DMAX("Score", "Belts", "MFRNum = '" & B.MFRNUM & "'")

This would update [Tag] to "Y" for the record with the maximum [Score] within each MFRNUM.
FROM
0
 
LVL 3

Author Closing Comment

by:fordraiders
ID: 39801843
Thanks very much
0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

In a multiple monitor setup, if you don't want to use AutoCenter to position your popup forms, you have a problem: where will they appear?  Sometimes you may have an additional problem: where the devil did they go?  If you last had a popup form open…
It’s been over a month into 2017, and there is already a sophisticated Gmail phishing email making it rounds. New techniques and tactics, have given hackers a way to authentically impersonate your contacts.How it Works The attack works by targeti…
Familiarize people with the process of retrieving data from SQL Server using an Access pass-thru query. Microsoft Access is a very powerful client/server development tool. One of the ways that you can retrieve data from a SQL Server is by using a pa…
What’s inside an Access Desktop Database. Will look at the basic interface, Navigation Pane (Database Container), Tables, Queries, Forms, Report, Macro’s, and VBA code.

740 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