From: | Oliver Elphick <olly(at)lfix(dot)co(dot)uk> |
---|---|
To: | Oliver Kullmann <O(dot)Kullmann(at)swansea(dot)ac(dot)uk> |
Cc: | pgsql-novice(at)postgresql(dot)org |
Subject: | Re: how to rename an unnamed uniqueness constraint? |
Date: | 2005-08-16 22:16:42 |
Message-ID: | 1124230602.12095.99.camel@linda |
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Thread: | |
Lists: | pgsql-novice |
On Tue, 2005-08-16 at 19:01 +0100, Oliver Kullmann wrote:
> I have a table created with
>
> CREATE TABLE Current_academic_year
> (
> year_id INT REFERENCES Academic_years,
> CONSTRAINT year_id CHECK(year_id IS NOT NULL),
> active BOOL NOT NULL,
>
> UNIQUE(year_id),
> UNIQUE(active)
> )
> ;
Since this is the novice list, I will add that that is a round-about way
of declaring the table.
CREATE TABLE current_academic_year
(
year_id INT PRIMARY KEY REFERENCES academic_years,
active BOOLEAN NOT NULL UNIQUE
);
does the same and is easier to read.
Also, your capitalisation of table names won't be preserved, because you
don't double-quote them.
--
Oliver Elphick olly(at)lfix(dot)co(dot)uk
Isle of Wight http://www.lfix.co.uk/oliver
GPG: 1024D/A54310EA 92C8 39E7 280E 3631 3F0E 1EC0 5664 7A2F A543 10EA
========================================
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