Re: SERIAL and Primary Key

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(at)myemma(dot)com
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