Re: SQL-question: returning the id of an insert querry
Alvaro Herrera <alvherre@dcc.uchile.cl>
From: Alvaro Herrera <alvherre@dcc.uchile.cl>
To: Scott Chapman <scott_list@mischko.com>
Cc: Martijn van Oosterhout <kleptog@svana.org>, Andreas Fromm <Andreas.Fromm@physik.uni-erlangen.de>, pgsql-general@postgresql.org
Date: 2003-11-09T18:52:45Z
Lists: pgsql-general
On Sun, Nov 09, 2003 at 10:26:51AM -0800, Scott Chapman wrote:
> On Sunday 09 November 2003 03:13, Martijn van Oosterhout wrote:
> > After you've done the insert on the address table, you can use
> > currval('address_id_seq') (or equivalent) to get the ID. Ofcourse you
> > have to have used nextval() for the original insert.
>
> What if someone else inserts another address before I get the currval?
> I'm out of luck then, right?
No, currval is concurrency-safe. That's exactly what sequences are for.
--
Alvaro Herrera (<alvherre[a]dcc.uchile.cl>)
"I call it GNU/Linux. Except the GNU/ is silent." (Ben Reiter)