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how to retrieve only the duplicates in a table

There is a table with a single column with 75 rows - 50 unique / 25
duplicates. How would pull back a list of the rows that have/are
duplicates?

This is a question that I got in an interview. I didn't get it,
obviously....

Thanks,

Tim
Jul 20 '05 #1
1 2747
SELECT col1, col2, col3, ....
FROM Sometable
GROUP BY col1, col2, col3, ....
HAVING COUNT(*)>1

--
David Portas
------------
Please reply only to the newsgroup
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"TimG" <ti****@hotmail.com> wrote in message
news:74**************************@posting.google.c om...
There is a table with a single column with 75 rows - 50 unique / 25
duplicates. How would pull back a list of the rows that have/are
duplicates?

This is a question that I got in an interview. I didn't get it,
obviously....

Thanks,

Tim

Jul 20 '05 #2

This thread has been closed and replies have been disabled. Please start a new discussion.

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