Re: the last instance of a record -- MIDRANGE-L

× The internal search function is temporarily non-functional. The current search engine is no longer viable and we are researching alternatives.
As a stop gap measure, we are using Google's custom search engine service.
If you know of an easy to use, open source, search engine ... please contact support@midrange.com.

the only problem I see is, can you assume that the records are inorder by RRN? If you have REUSEDLT attribute set to *YES, you can'tmake this assumption. Is there date in the key or somewhere in the record?


At 02:06 PM 3/19/2006, you wrote:

I've got a file with 2 or 3 years worth of history in it.  the key
fields are not unique, so duplicates abound.

I want to extract the last instance (by rrn) of each key value.

will this work?

copy the file (by rrn) to a sequencial file (this ?might? not be necessary?)

create an empty duplicate file with unique keyword specified.

cpyf to the empty file using *UPDADD

sound kosher?

--
This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing list
To post a message email: MIDRANGE-L@xxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx
Before posting, please take a moment to review the archives
at http://archive.midrange.com/midrange-l.

This mailing list archive is Copyright 1997-2024 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.