From: | "Chad Thompson" <chad(at)weblinkservices(dot)com> |
---|---|
To: | "Aaron Chu" <astrate(at)mac(dot)com>, <pgsql-sql(at)postgresql(dot)org> |
Subject: | Re: Beginner needs help |
Date: | 2003-03-01 22:55:57 |
Message-ID: | 094f01c2e045$b9ff5980$32021aac@chad |
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Thread: | |
Lists: | pgsql-sql |
So, if I understand. You want a list of people whose surnames appear more
than once?
Something like
select count(*), surname
from mytable
group by surname
having count(*) > 1
This will show a unique list of all the surnames that appear more than 1
time.
HTH
Chad
----- Original Message -----
From: "Aaron Chu" <astrate(at)mac(dot)com>
To: <pgsql-sql(at)postgresql(dot)org>
Sent: Thursday, February 27, 2003 4:17 PM
Subject: [SQL] Beginner needs help
> Hi,
>
> I have a table which has a column of surnames (string) and I would like
> to know how can I retrieve (SELECT) all the repeated surnames, i.e.
> more than one person who has the same surname.
>
> Thanks.
>
>
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