Re: last entry per person

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От Andreas Kretschmer
Тема Re: last entry per person
Дата
Msg-id 20120203084003.GA14758@tux
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Ответ на last entry per person  (garry <garry@scholarpack.com>)
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garry <garry@scholarpack.com> wrote:

> I have a table which holds a user name and their results in exams. There
> can be multiple entries per user. I am trying to return the last entry
> for each user. I can get the last entry in the table using the order
> by/limit method but how would this be applied per user. My table
> definition is like the following:
>
>> gradeid serial primary key,
>> user text,
>> grade char(1),
>> entered timestamp,
> Any help would be appreciated.
> Regards
> Garry

What about "select user, max(entered) from table group by user" ?

Btw.: user is a reserved word, don't use it as column-name.



Andreas
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