From: SG Edwards <s0460205@sms.ed.ac.uk>
To: pgsql-interfaces@postgresql.org
Subject: Check before insert
Date: Tue, 15 Mar 2005 21:07:43 +0000
Message-ID: <1110920863.42374e9f75aa1@sms.ed.ac.uk> (raw)
Hi,
I have a table as follows:
protein_id | name
___________ ______
P04667 Albumin
P45366 Lactoglobulin
....
etc
I have a perl script that will insert data into this table from a file
containing a list of protein_id and names. However, I only want to insert
proteins where they are not already present in the database. Is there a way to
do this using an SQL command?
Thanks
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: s0460205@sms.ed.ac.uk
Subject: Re: Check before insert
In-Reply-To: <1110920863.42374e9f75aa1@sms.ed.ac.uk>
* 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