RE: Find non-unique "key" values via SQL

["Mark Walter" <mwalter@xxxxxxxxxxx>]

select daCusN, count(*) from OPLOGDATA
    group by daCusN having count(*) > 1


Mark Walter
Senior Programmer/Analyst
IBM Certified RPG Developer
Hainey Business Systems
(717) 600-0033 Ext 130
mwalter@xxxxxxxxxxx
http://www.hbs-inc.com
 

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Dan
Sent: Tuesday, January 09, 2007 2:51 PM
To: Midrange Systems Technical Discussion
Subject: Find non-unique "key" values via SQL

Currently, I'm using:

  select daCusN, count(*) from OPLOGDATA
    group by daCusN

and that gives me a list of customer numbers and a count value for each
customer.  How do I get the results to show only those customer numbers
that have a count greater than 1?  I tried:

 select daCusN, count(*) from OPLOGDATA
    where count(*) > 1
    group by daCusN

But got SQL0120: "Use of column function COUNT not valid."

TIA,
Dan
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