Re: How do I select the last Id in a column???

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От Michael Kovalcik
Тема Re: How do I select the last Id in a column???
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Msg-id 20030627213130.17702.qmail@web11106.mail.yahoo.com
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Ответ на Re: How do I select the last Id in a column???  ("Josh Goldberg" <josh@4dmatrix.com>)
Ответы Re: How do I select the last Id in a column???  ("scott.marlowe" <scott.marlowe@ihs.com>)
Список pgsql-admin
All,

i got the answer i was needing.  I used the following:

select max(id) from table

it works great!! :)

--- Josh Goldberg <josh@4dmatrix.com> wrote:
> What could cause a table to act serialized when read
> committed transactions
> are set in the configuration?  That is something I
> am running into, which
> provoked my [incorrect] example.
>
> From: "Bruno Wolff III" <bruno@wolff.to>
> Sent: Thursday, June 26, 2003 4:30 PM
> > On Thu, Jun 26, 2003 at 14:00:33 -0700,
> >   Josh Goldberg <josh@4dmatrix.com> wrote:
> > > to get the last record inserted just
> > > select * from row order by autoincId desc limit
> 1;
> > >
> > > if you have several clients doing this you might
> want to put your insert
> and
> > > the select inside a transaction.
> >
> > That won't help. Your suggestion will only work in
> serializable
> transactions.
> >
> > In read committed mode the select might see a
> value for autoincId from
> > a transaction that committed between the insert
> and the select.
> >
> > ---------------------------(end of
> broadcast)---------------------------
> > TIP 8: explain analyze is your friend
> >
>


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