Re: The fable of DEMETRIUS, CONSTRAINTICUS, and AUTOMATICUS

From: Kenneth Downs <firstinit.lastname_at_lastnameplusfam.net>
Date: Wed, 20 Oct 2004 14:11:14 -0400
Message-ID: <2o96lc.gmh.ln@mercury.downsfam.net>

Laconic2 wrote:

>
> "Marshall Spight" <mspight_at_dnai.com> wrote in message
> news:Q3wdd.217587$wV.174119_at_attbi_s54...
>

>> I must say I am impressed with your creativity. However, I find this
>> exact solution unsatisfying, but I have a *related* idea which you
>> may find interesting.
>>
>> What if we could *declare* a set according to its properties
>> (constraints, really) and use them as if they were regular sets? So we
>> could have a set ValidSalaries that was declarad as the set of all
>> integers between 0 and 100,000?

>
> I hate to keep beating the same dead horse, but won't CREATE DOMAIN do
> exactly this?
>
> CREATE DOMAIN valid_salary CONSTRAINT valid_salary BETWEEN 0 AND 100000;
>
>
> CREATE TABLE EMPLOYEES
> (...
> SALARY VALID_SALARY,
> ...);

Yes. In fact, I wondered if you were going to jump in ;)

But see my reply to Marshall, my problem is that CREATE DOMAIN is DDL.

-- 
Kenneth Downs
Use first initial plus last name at last name plus literal "fam.net" to
email me

Received on Wed Oct 20 2004 - 13:11:14 CDT