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Re: [SQL] Arithmetic operation on DATE

From: Christopher Sawtell <csawtell(at)paradise(dot)net(dot)nz>
To: "macky" <macky(at)edsamail(dot)com>, <pgsql-novice(at)postgresql(dot)org>, <pgsql-sql(at)postgresql(dot)org>
Subject: Re: [SQL] Arithmetic operation on DATE
Date: 2001-08-13 10:01:59
Message-ID: 20010813100119.3FECD1FA04B@deborah.paradise.net.nz (view raw or flat)
Thread:
Lists: pgsql-novicepgsql-sql
On Mon, 13 Aug 2001 21:48, macky wrote:
> is it possible to add a date datatype column to a number resulting to a
> date......

chris=# select date(CURRENT_TIMESTAMP);
    date
------------
 2001-08-13
(1 row)
 
chris=# select date(CURRENT_TIMESTAMP) + '6 @days'::interval;
        ?column?
------------------------
 2001-08-19 00:00:00+12
(1 row)
 
chris=# select date(date(CURRENT_TIMESTAMP) + '6 @days'::interval);
    date
------------
 2001-08-19
(1 row)

That what you want?

> theoretically it should do this,,,
>
> X is in months
>
> date + X = date
>
> -->  2001-08-20 + 6 = 2002-02-20
>
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