| From: | David Fetter <david(at)fetter(dot)org> |
|---|---|
| To: | Gregory Stark <stark(at)enterprisedb(dot)com> |
| Cc: | Edward Stanley <Edward(dot)Stanley(at)mcs(dot)vuw(dot)ac(dot)nz>, Richard Huxton <dev(at)archonet(dot)com>, Sean Utt <sean(at)strateja(dot)com>, Andrew Hammond <andrew(dot)george(dot)hammond(at)gmail(dot)com>, josh(at)agliodbs(dot)com, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: My honours project - databases using dynamically attached entity-properties |
| Date: | 2007-03-14 15:50:50 |
| Message-ID: | 20070314155050.GA14491@fetter.org |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
On Wed, Mar 14, 2007 at 02:28:03PM +0000, Gregory Stark wrote:
> "David Fetter" <david(at)fetter(dot)org> writes:
>
> > CREATE TABLE symptom (
> > symptom_id SERIAL PRIMARY KEY, /* See above. */
> > ...
> > );
> >
> > CREATE TABLE patient_presents_with (
> > patient_id INTEGER NOT NULL REFERENCES patient(patient_id),
> > symptom_id INTEGER NOT NULL REFERENCES symptom(symptom_id),
> > UNIQUE(patient_id, symptom_id)
> > );
>
> I'm just glad I don't have your doctor. I hope mine doesn't think
> symptoms are all boolean values.
What's in the symptom table is up to the doctor.
Cheers,
D
--
David Fetter <david(at)fetter(dot)org> http://fetter.org/
phone: +1 415 235 3778 AIM: dfetter666
Skype: davidfetter
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