From: | Oliver Elphick <olly(at)lfix(dot)co(dot)uk> |
---|---|
To: | gearond(at)cvc(dot)net |
Cc: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: using serial values |
Date: | 2003-02-13 20:19:11 |
Message-ID: | 1045167551.10914.60.camel@linda.lfix.co.uk |
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Thread: | |
Lists: | pgsql-general |
On Thu, 2003-02-13 at 20:03, Dennis Gearon wrote:
> How do I get the values for the serial field? Do they automatically insert themselves with a
> default if I do not use that field in the INSERT statement?
Yes.
Or you can explicitly use nextval('sequence_name') to get the next
value.
> Example:
>
> create table EntityTypes(
> entity_type_id serial NOT NULL CONSTRAINT PK_EntityTypes1 PRIMARY KEY,
> entity_type varchar(16) NOT NULL,
> CONSTRAINT UC_EntityTypes_Entity_Type1 UNIQUE(entity_type)
> );
>
>
> INSERT INTO EntityTypes( entity_type ) VALUES 'Big Smile, Good Dresser, Easy to Get Along With';
>
> Will the above statement causes a row to be inserted with the value
> for 'entity_type_id' to be
> automatically 1 or 0?
Actually it will fail for syntax errors, but once you have corrected
those, it will insert a row with entity_type = 1.
--
Oliver Elphick Oliver(dot)Elphick(at)lfix(dot)co(dot)uk
Isle of Wight, UK http://www.lfix.co.uk/oliver
GPG: 1024D/3E1D0C1C: CA12 09E0 E8D5 8870 5839 932A 614D 4C34 3E1D 0C1C
========================================
"The earth is the LORD'S, and the fullness thereof; the
world, and they that dwell therein."
Psalms 24:1
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