From: John R Pierce <pierce@hogranch.com>
To: pgsql-general@postgresql.org
Subject: Re: string functions and operators
Date: Mon, 22 Mar 2010 20:49:16 -0700
Message-ID: <4BA83A3C.5080602@hogranch.com> (raw)
In-Reply-To: <22285.35517.qm@web113713.mail.gq1.yahoo.com>
References: <22285.35517.qm@web113713.mail.gq1.yahoo.com>
Neil Stlyz wrote:
> Hello,
>
> I have a dilema and I was hoping someone here may offer guidance or
> assistance. I bet this is a very simple question for someone out there
> but I am having problems coming up with a solution. Here it is...
>
> suppose I have a field with the following values:
>
> 77.1
> 77.2
> 134.1
> 134.2
> 134.3
> 5.1
> 5.2
>
> I need two seperate SELECT queries. One would return the following
> values (everything left of the decimal point)
>
> 77
> 77
> 134
> 134
> 5
> 5
>
> The second query would return all of the values to the right of the
> decimal point:
>
> 1
> 2
> 1
> 2
> 3
> 1
> 2
silly me says..
SELECT FLOOR(x), x-FLOOR(x) FROM TABLE;
at least for numeric values.
but, in string space, ummmm...
select split_part(x,'.',1), split_part(x,'.',2) from table;
or
select regexp_replace(x, '\.[0-9]*$',''),
regexp_replace(x,'^[0-9]*\.','') from table;
or god knows how many others.
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-sql@postgresql.org
Cc: pierce@hogranch.com, pgsql-general@postgresql.org
Subject: Re: string functions and operators
In-Reply-To: <4BA83A3C.5080602@hogranch.com>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox