Обсуждение: Autonumber

Is there an autonumber data type in postgreSQL?

Terry
terry@greatgulfhomes.com

On Thu, 3 May 2001, Terry Fielder wrote:

> Is there an autonumber data type in postgreSQL?
>
If you mean a type that it is automatically incremented then yes SERIAL.
Actually serial isn't a datatype. It is an integer column with
a default value that is the next number of a sequence that is
automatically created.

CREATE TABLE foo (
    bar1 SERIAL,
    bar2 text
);
INSERT INTO foo (bar2) VALUES ('text value');
INSERT INTO foo (bar2) VALUES ('text value2');

and the bar1 gets an automatic value.

- Einar Karttunen

On Thu, May 03, 2001 at 11:11:20AM -0700, Terry Fielder wrote:
> Is there an autonumber data type in postgreSQL?
>

"SERIAL"

    CREATE TABLE xxx (id SERIAL, data TEXT);

or see docs for 'create sequence' -- it's more controllable stuff.

        Karel

--
 Karel Zak  <zakkr@zf.jcu.cz>
 http://home.zf.jcu.cz/~zakkr/

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