Обсуждение: customising serial type

hi,
in a table with a serial datatype, how do i get the sequence to start
at a specific number like 100000?
--
regards
kg

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On Tuesday 21 June 2005 13:01, you wrote:
> hi,
> in a table with a serial datatype, how do i get the sequence to start 
> at a specific number like 100000?

ALTER SEQUENCE sequence_name RESTART WITH 100000;

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On Jun 21, 2005, at 7:01 PM, Kenneth Gonsalves wrote:

> in a table with a serial datatype, how do i get the sequence to start
> at a specific number like 100000?

The SERIAL datatype (e.g., CREATE TABLE foo(foo_id SERIAL) )is a  
shorthand for something like
CREATE SEQUENCE foo_id_seq;
CREATE TABLE foo (foo_id integer default nextval('foo_id_seq') );

If you want it to specify the start value, you'll need to either use  
CREATE SEQUENCE first and then create the table with the appropriate  
default, or use ALTER SEQUENCE after creating the table.

http://www.postgresql.org/docs/8.0/interactive/sql-createsequence.html
http://www.postgresql.org/docs/8.0/interactive/sql-altersequence.html

Michael Glaesemann
grzm myrealbox com

Am Dienstag, 21. Juni 2005 12:01 schrieben Sie:
> hi,in a table with a serial datatype, how do i get the sequence to start at
> a specific number like 100000?


Use START in the create sequence statement.
#

create sequence seq_xeingang increment 1 start 1000;
;

CREATE TABLE xeingang  
(  id            integer default nextval('seq_xeingang'), buch        char not null,  eingdt      date not null, jnr
      integer not null, grp           integer, code          integer not null
 
);



my best regards..

Stefan