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  3. March 2006

Re: the last instance of a record

select file.*
from file join (SELECT max(rrn(file)) as maxrrn
                from file
                group by keyfld) rrnf
on rrn(file) = maxrrn

On 3/19/06, rick baird <rick.baird@xxxxxxxxx> 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?

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