Hi Phil,
Each of columns that you specify in your SELECT clause, must also
appear in the GROPU BY clause.
SELECT COUNT(*) AS cnt, name, comment, ...
FROM tst
GROUP BY name, comment, ...
HAVING COUNT(*) = 1;
Phil Rhoades wrote:
> People,
>
>
>
>> select count(*) as cnt, name from tst group by name having count(*) = 1
>>
>
>
> This worked for my basic example but not for my actual problem - I get
> "column comment must appear in the GROUP BY clause or be used in an
> aggregate function" errors so I have a related question:
>
> With table:
>
> name comment
>
> 1 first comment
> 2 second comment
> 3 third comment
> 3 fourth comment
> 4 fifth comment
> 5 sixth comment
>
> - how can I use something like the previous select statement but where
> the comment field does not appear in the "group by" clause and gives the
> following result:
>
> 1 first comment
> 2 second comment
> 4 fifth comment
> 5 sixth comment
>
> Thanks,
>
> Phil.
>
Mike Ginsburg
Collaborative Fusion, Inc.
mginsburg@collaborativefusion.com
412-422-3463 x4015
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