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From: Achilleas Mantzios <achill@matrix.gatewaynet.com>
To: pgsql-sql@postgresql.org
Subject: Re: Correct implementation of 1:n relationship with n>0?
Date: Wed, 08 May 2013 10:04:34 +0300
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Organization: Dynacom Tankers Mgmt
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On =C3=94=C3=B1=C3=A9 30 =C3=81=C3=B0=C3=B1 2013 20:25:42 Wolfgang Keller w=
rote:
> > (there is nothing wrong in getting your hands dirty with pl/pgsql btw)
>=20
> The point is that I would have expected that problem to be solved
> within the past four decades since relational databases have been
> invented. Or at least in the past two decades since PostgreSQL has been
> developed.
>=20

Then what about n>1, n>2, n>k where k an arbitrarily large positive integer?
isn't it the same problem class actually?

Is there any serious database vendor who provides out of the box support fo=
r 1:n, n>0 ?
Or is it an "unusual" user requirement in the first place.
Ever thought why not so many people have asked for this?

Anyway, IMHO, the need for more programming/programmers increases with the =
years,
engineering becomes more complex, you can't expect serious contgrol in anyt=
hing without=20
getting under the hood.

> >;->
>=20
> After all, this should be really an ultra-classic-standard FAQ item.
>=20
> I'm definitely not the first database user in the world who needs to
> have a 1:n relationship with n>0 and integrity enforced by the
> database.
>=20
> Sincerely,
>=20
> Wolfgang
>=20
>=20
>=20
-
Achilleas Mantzios
IT DEV
IT DEPT
Dynacom Tankers Mgmt


--=20
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