From: Jasen Betts <jasen@xnet.co.nz>
To: pgsql-sql@postgresql.org
Subject: Re: generated dates from record dates - suggestions
Date: 21 Aug 2012 11:14:53 GMT
Message-ID: <k0vqjd$obp$1@reversiblemaps.ath.cx> (raw)
References: <201208201317.46588.gary.stainburn@ringways.co.uk>
On 2012-08-20, Gary Stainburn <gary.stainburn@ringways.co.uk> wrote:
> Hi folks.
>
> I've got a table with three dates which are populated from an external source.
> I then want to have a view with two calculated dates in it, e.g.
>
> if date_1 is null and date_2 is null then date_a=NULL
> if date_1 is not null and date 2 is null then date_a=date_1+'90 days'
> if date_1 > date3 rhen date_b=date1 else date_b=date2
> etc.
>
> What's the best way to do this?
CASE looks good.
> I know it's a quite open question but I'm interested to hear different
> responses
"date_b" on line three, is that a typo? if not how am i to interpret
it?
--
⚂⚃ 100% natural
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To: pgsql-sql@postgresql.org
Cc: jasen@xnet.co.nz
Subject: Re: generated dates from record dates - suggestions
In-Reply-To: <k0vqjd$obp$1@reversiblemaps.ath.cx>
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