At 3:10 PM +0100 8/9/01, Dave Watkinson wrote:
>You'll note that both step requires a return, which general means a
>subquery, I believe for MySQL to hanle subqueries you actually have
>to perform to separate queries. If your not using MySQL then you
>could write a statement such as:
>
>SELECT empid FROM emp_cont WHERE (SELECT COUNT(empid) FROM emp_cont
>GROUP BY empid) [note statement may need tweaking since I use MySQL
>and can't test it]
>
>that didn't work
>
Yeah, that one shouldn't work on MySQL. MySQL doesn't allow
subqueries like this. But here's another option you could use:
SELECT empid, COUNT(empid) FROM emp_cont GROUP BY empid HAVING
COUNT(empid) > 1
I tend to use either group by or having, so forgot that having can be
used to limit a group by. But this statement should work for you, as
well.
Alnisa
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Alnisa Allgood
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