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Re: A few misc. questions.

From: Ragnar Kjørstad <postgres(at)ragnark(dot)vestdata(dot)no>
To: Peter Eisentraut <peter_e(at)gmx(dot)net>
Cc: Rainer Mager <rmager(at)vgkk(dot)com>, pgsql-admin(at)postgresql(dot)org
Subject: Re: A few misc. questions.
Date: 2000-05-27 07:32:10
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Lists: pgsql-admin
On Fri, May 26, 2000 at 04:15:31PM +0200, Peter Eisentraut wrote:
> On Fri, 26 May 2000, Rainer Mager wrote:
> > 2. Does anyone one know a standard SQL method (that works with Postgres) to
> > retrieve the primary key of a newly INSERTed record? We've found one way but
> > it will not work with order databases since it relies on reading data from
> > the sequence tables.
> Again, what you do with your primary keys is up to you. Ideally you won't
> need to retrieve the primary key value because you know what you just
> inserted. If you are talking about serial, then the answer is there isn't
> one because serial isn't SQL. But as someone already said, the curval
> function will do.

Another approach is something like this:
pkey=sql("select nextval('some-sequence')")
sql("insert into table values ($pkey, $data)")

Ragnar Kjørstad

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