pg.ddx.io  pgsql-interfaces@postgresql.org mailing list archive  
help / color / mirror / Atom feed
From: Michael Meskes <meskes@postgresql.org>
To: asergioz@bol.com.br
Cc: PostgreSQL Interfaces <pgsql-interfaces@postgresql.org>
Subject: Re: Calculations With NUMERIC Data Type In C Program
Date: Sun, 24 Jun 2001 14:39:03 +0200
Message-ID: <20010624143903.A30948@feivel.fam-meskes.de> (raw)

On Sat, Jun 23, 2001 at 06:16:48PM -0300, asergioz wrote:
> ...
> PostgreSQL.  I need to perform several
> calculations, in a C program, with
> data returned from lots of fields of
> the NUMERIC (17, 7)
> data type.
> ... 
> EXEC SQL BEGIN DECLARE SECTION;
> numeric(17, 7)     var_1;
> numeric(17, 7)     var_2;
> long               key = 123;
> EXEC SQL END DECLARE SECTION;

I do not know that there is a numeric datatype in C. The datatype's given in
the declare section have to be C types.

> Please, does the ECPG interface work
> with variables of the NUMERIC data
> type, as shown above?

If you can map them to a C datatype yes.

> If not, what are the alternatives?

This is the same problem you run into with any embedded SQL preprocessor
there is.

Michael
-- 
Michael Meskes
Michael@Fam-Meskes.De
Go SF 49ers! Go Rhein Fire!
Use Debian GNU/Linux! Use PostgreSQL!



view thread (3+ messages)  latest in thread

Message-ID: <20010624143903.A30948@feivel.fam-meskes.de>
Permalink:  ../20010624143903.A30948@feivel.fam-meskes.de/
Also on:    postgresql.org/message-id/20010624143903.A30948@feivel.fam-meskes.de

 · 

reply

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-interfaces@postgresql.org
  Cc: meskes@postgresql.org, asergioz@bol.com.br
  Subject: Re: Calculations With NUMERIC Data Type In C Program
  In-Reply-To: <20010624143903.A30948@feivel.fam-meskes.de>

* 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