Re: [GENERAL] auto increment?

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От David Hartwig
Тема Re: [GENERAL] auto increment?
Дата
Msg-id 006501be4727$3a6ef740$027dc497@daveh
обсуждение исходный текст
Список pgsql-general
Each PostgreSQL table has a, system assigned, oid (object ID) column which
is useful for uniquely identifying rows.   Users have vertually no control
over it value.


There is also:

    CREATE TABLE foo (
        ai    serial primary key,
        bar integer
    );

which is a short cut in the parser for:

CREATE SEQUENCE ai_seq;
CREATE TABLE foo (
        ai integer default nextval('ai_seq') primary key,
        bar integer
);

The ai column in each create statement does not require the user code to
explicitly assign its values.

See CREATE_SEQUENCE in the doc.


----- Original Message -----
From: Robert Williams <rwilliams@jrc-utah.com>
To: Postgres <pgsql-general@postgreSQL.org>
Sent: Saturday, January 23, 1999 4:11 PM
Subject: [GENERAL] auto increment?


>How do I set up a column as auto increment?  I have looked
>everywhere for the postgres equivalent ROWID as in Oracle.
>
>--
>Robert Williams          rwilliams@jrc-utah.com
>Jarob Consulting         rwilliams@kde.org
>Provo, Utah              rwilliams71@mailexcite.com


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