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select distinct CUSKEY, CUSCOD, count(*)
from YourPF
having count(*) > 1

If you get records, then not one-to-one.

Hah.... First line of code I've written in the last almost 8 months. Hope it works <grin>

Roger Harman
COMMON Certified Application Developer - ILE RPG on IBM i on Power

-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of James H. H. Lampert via MIDRANGE-L
Sent: Friday, August 19, 2022 4:22 PM
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxxxxxxxx>
Cc: James H. H. Lampert <jamesl@xxxxxxxxxxxxxxxxx>
Subject: Verifying a one-to-one relationship between two fields

I have a non-keyed PF, with some 44k records. There are two fields,
CUSKEY and CUSCOD, neither of which is a unique key to the file. I
suspect that there is a one-to-one relationship. Can somebody suggest
the easiest possible way to verify this?


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