From: Julius Tuskenis <julius@nsoft.lt>
To: Ashish Karalkar <ashishka@synechron.com>
Cc: pgsql-admin@postgresql.org <pgsql-admin@postgresql.org>
Cc: suresh gupta <suresh.g@zensar.com>
Subject: Re: Query related
Date: Fri, 13 Mar 2009 09:52:51 +0200
Message-ID: <49BA10D3.9070200@nsoft.lt> (raw)
In-Reply-To: <49BA0D03.3060005@synechron.com>
References: <004001c9a3a9$9e715dc0$cd64290a@ind.zensar.com>
<49BA0D03.3060005@synechron.com>
Hello
> postgres=# create table name(fn text,ln text);
fn and ln could be nulls, so instead of
> postgres=# select fn||' '||ln as name from name;
SELECT COALESCE(fn,'')||' '||COALESCE(ln,'') from name should be used.
This is because NULL||TEXT = NULL
--
Julius Tuskenis
Programavimo skyriaus vadovas
UAB nSoft
mob. +37068233050
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To: pgsql-admin@postgresql.org
Cc: julius@nsoft.lt, ashishka@synechron.com, suresh.g@zensar.com
Subject: Re: Query related
In-Reply-To: <49BA10D3.9070200@nsoft.lt>
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