Thank you.
You stated that the SELECT currval('orderid_id_seq') statement is a
separate query and must be treated as such.
This gives me cause for concern. My intention is to obtain the orderid
of the order inserted at that moment, but if I am to use a separate
query it would seem there is a chance (albeit a small one) that another
order could come through before I am able to obtain the orderid.
Jason Minion wrote:
Check out http://www.postgresql.org/docs/8.0/interactive/functions-sequence.html
You'll want to use something like "SELECT currval('<name of sequence>')". The thing
is, your orderid field in orderstemp has a sequence which it uses to grab the
next value. The currval function called with the name of the sequence as the
parameter will give you results as you are accustomed to. However, it is a
separate query and must be treated as such. Note that you need to call it
using the same database connection. And sequences are special - they always
update and do not roll back with failed transactions.
If you used default serial notation in your create table statement, your table is
likely named "orderid_id_seq":
SELECT currval('orderid_id_seq'::text);
Jason
-----Original Message-----
From: pgsql-admin-owner@xxxxxxxxxxxxxx
[mailto:pgsql-admin-owner@xxxxxxxxxxxxxx]On Behalf Of
josh@xxxxxxxxxxxxxxxx
Sent: Tuesday, August 16, 2005 4:09 PM
To: pgsql-admin@xxxxxxxxxxxxxx
Subject: [ADMIN] SQL Help - Obtaining ID of record INSERTED
Greetings.
INSERT INTO
orderstemp (customerid,datecreated)
VALUES
('5443','8/16/2005 12:00PM')
The table orderstemp has a unique identifier field, orderid (of type
SERIAL).
How can I obtain the orderid of the record inserted in the INSERT INTO
statement in postgresql?
MSSQL does it like this:
INSERT INTO
orderstemp (customerid,datecreated)
VALUES
('5443','8/16/2005 12:00PM')
SELECT @@identity as orderid
but this doens't work in postgresql.
Any ideas? Thanks in advance.
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