Re: last entry per person
| От | Jasen Betts |
|---|---|
| Тема | Re: last entry per person |
| Дата | |
| Msg-id | jh5gct$mrl$4@reversiblemaps.ath.cx обсуждение исходный текст |
| Ответ на | last entry per person (garry <garry@scholarpack.com>) |
| Список | pgsql-general |
On 2012-02-03, garry <garry@scholarpack.com> wrote: > This is a multi-part message in MIME format. > --------------060709070909070009090305 > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > Content-Transfer-Encoding: 7bit > > 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, select distinct on (user) * from EXAMS order by entered desc; -- ⚂⚃ 100% natural
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