Re: SERIAL and Primary Key

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От Erik Jones
Тема Re: SERIAL and Primary Key
Дата
Msg-id DDDBF231-EF31-4513-B3AF-C7567BB2C581@myemma.com
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Ответ на SERIAL and Primary Key  ("Mike Gould" <mgould@allcoast.net>)
Список pgsql-general
On Feb 29, 2008, at 2:28 PM, Mike Gould wrote:

> CREATE TABLE "fav5"."batchnumber" (
>   "batchnumberid" SERIAL NOT NULL,
>   "processtype" SMALLINT NOT NULL,
>   "termloc" CHAR(3) NOT NULL,
>   "batchno" INTEGER NOT NULL
> ) WITHOUT OIDS;
> With the above table definition, is batchnumberid by default also
> defined as the primary key or do I still need to define a separate
> Primary Key constraint?
>

No, you need to add the PRIMARY KEY bit which means you can also drop
the NOT NULL bit for that field.

Erik Jones

DBA | Emma®
erik@myemma.com
800.595.4401 or 615.292.5888
615.292.0777 (fax)

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