Обсуждение: how to use nextval()

Hello there

I have an idea how to solve my problem on copy a record to a new one in the
same table. To do so I need the next value for the primary key.

Using :

select nextval('pk_auftrag') as nextkey from auftrag;

I get an error like : Relation pk_auftrag does not exist !

Thanks for any help ... jr

__________________________________________________

PFISTER + PARTNER, SYSTEM - ENGINEERING AG
Juerg Rietmann
Grundstrasse 22a
6343 Rotkreuz
Switzerland

internet          :  www.pup.ch
phone       : +4141 790 4040
fax         : +4141 790 2545
mobile            : +4179 211 0315
__________________________________________________

Le ven 05/07/2002 à 14:03, juerg.rietmann@pup.ch a écrit :
> Hello there
>
> I have an idea how to solve my problem on copy a record to a new one in the
> same table. To do so I need the next value for the primary key.
>
> Using :
>
> select nextval('pk_auftrag') as nextkey from auftrag;
>
> I get an error like : Relation pk_auftrag does not exist !
>
> Thanks for any help ... jr
Try to get the right name of the sequence.
By default, something like auftrag_auftrag_id_seq, if auftrag_id is the
serial primary key.

select nextval('auftrag_auftrag_id_seq') as nextkey;

S@S

On Fri, 5 Jul 2002 juerg.rietmann@pup.ch wrote:

> Hello there
> 
> I have an idea how to solve my problem on copy a record to a new one in the
> same table. To do so I need the next value for the primary key.
> 
> Using :
> 
> select nextval('pk_auftrag') as nextkey from auftrag;
> 
> I get an error like : Relation pk_auftrag does not exist !

Do a \d to find out the name of your sequence.
Most probably it will be named as 
"auftrag_<your auftrag table primary key>_seq".

Let it be "auftrag_id_seq".

Your command is

SELECT nextval('"auftrag_id_seq"'::text);

> 
> Thanks for any help ... jr
> 
> __________________________________________________
> 
> PFISTER + PARTNER, SYSTEM - ENGINEERING AG
> Juerg Rietmann
> Grundstrasse 22a
> 6343 Rotkreuz
> Switzerland
> 
> internet          :  www.pup.ch
> phone       : +4141 790 4040
> fax         : +4141 790 2545
> mobile            : +4179 211 0315
> __________________________________________________
> 
> 
> 
> 
> 
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