Re: Fetching last n records from Posgresql

From: "Deole, Pushkar (Pushkar)" <pdeole(at)avaya(dot)com>
To: John R Pierce <pierce(at)hogranch(dot)com>, "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org>
Subject: Re: Fetching last n records from Posgresql
Date: 2016-03-30 09:19:55
Message-ID: 78A4D6BFBAA5BA49A5E94DA00A6A76E309864466@AZ-FFEXMB04.global.avaya.com
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select * from t order by record_date desc limit 5;

this will return the recent 5 records.. what I want is the oldest 5 records (in last 30 days)

From: pgsql-general-owner(at)postgresql(dot)org [mailto:pgsql-general-owner(at)postgresql(dot)org] On Behalf Of John R Pierce
Sent: Wednesday, March 30, 2016 12:38 PM
To: pgsql-general(at)postgresql(dot)org
Subject: Re: [GENERAL] Fetching last n records from Posgresql

On 3/29/2016 11:40 PM, Deole, Pushkar (Pushkar) wrote:

WITH t AS (
SELECT * FROM mytable ORDER BY record_date ASC LIMIT 5
)
SELECT * FROM t ORDER BY record_date DESC;

why do it twice when you can just do....

select * from t order by record_date desc limit 5;

--

john r pierce, recycling bits in santa cruz

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