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  2. MIDRANGE-L
  3. January 2007

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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