From: Bruno Wolff III <bruno@wolff.to>
To: Hunter, Ray <rhunter@enterasys.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: Sequences
Date: Mon, 11 Feb 2002 08:36:51 -0600
Message-ID: <20020211143651.GA4020@wolff.to> (raw)
In-Reply-To: <59358A738F45D51186A30008C74CE250E81373@slc-exc1.ctron.com>
References: <59358A738F45D51186A30008C74CE250E81373@slc-exc1.ctron.com>
On Mon, Feb 11, 2002 at 08:43:23AM -0500,
"Hunter, Ray" <rhunter@enterasys.com> wrote:
> I have various sequences in my database set up for ids. My question is:
> How can I get the current value of the sequence without creating a session
> and using the currval function?
>
> I would like to take the current value of the sequence and use it for a
> value in an insert statement.
>
>
> Example:
>
> insert into users ( "user_id", "user_fname", "user_lname",
> "user_email" )
> values ( 'current sequence', 'Ray', 'Hunter',
> 'rhunter@enterasys.com' );
I think you want to use nextval in this context. currval is used when you
have already gotten a new sequence number and want to use it in several
inserts in the same transaction.
If you make user_id a serial type, then its default value will be nextval
and you could use:
insert into users ( "user_fname", "user_lname", "user_email" )
values ('Ray', 'Hunter', 'rhunter@enterasys.com' );
to add a row.
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To: pgsql-sql@postgresql.org
Cc: bruno@wolff.to, rhunter@enterasys.com
Subject: Re: Sequences
In-Reply-To: <20020211143651.GA4020@wolff.to>
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