Re: Selecting the last 2 rows of a table

From: Majid Azimi <majid(dot)merkava(at)gmail(dot)com>
To: pgsql-novice(at)postgresql(dot)org
Subject: Re: Selecting the last 2 rows of a table
Date: 2010-11-09 09:48:42
Message-ID: 1289296122.3893.1.camel@localhost.localdomain
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On Tue, 2010-11-09 at 11:34 +0200, Machiel Richards wrote:
> Good day all
>
> I am trying to find out how I can select the last 2 or (n
> amount ) of rows from a specific table.
>
> We have a table which has been growing rediculously the last
> view days (I must say after a code go-live).
>
> I am trying to find out what data is being written to the table
> that is causing this, however due to the size of the table at the
> moment, it can cause problems so I am just interested in the last
> number of records.
>
>
> I would appreciate any assistance in this.
>
>
> Regards
> Machiel

Or if you don't want to use "order by" you can use this but it is
inefficient:

SELECT * FROM <Table name> OFFSET (SELECT count(*) - 2 FROM <table
name>);

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