Re: Sequences

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.