RE: [GENERAL] Relations between tables.

From: christian <crr(at)freemail(dot)com(dot)br>
To: "Jackson, DeJuan" <djackson(at)cpsgroup(dot)com>
Cc: pgsql-general(at)postgreSQL(dot)org
Subject: RE: [GENERAL] Relations between tables.
Date: 1999-05-21 21:05:43
Message-ID: Pine.LNX.4.10.9905211800120.1571-100000@violinux.apocalypse.now
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On Thu, 20 May 1999, Jackson, DeJuan wrote:

> Not in and of itself. The FOREIGN KEY CONSTRAINT syntax is parsed but not
> implemented.

Are there plans for this _important feature_ :) being implemented?

> > MS Access has to be a poor example but I've seen tables relationed between
> > themselves.
> MS Access is a very poor example of most things SQL92.

Okay, okay, forget access. I knew I was going to draw flames on this
comparison.

> Nope this doesn't even happen in <omitted>. If you build your query
> in <omitted> and look at the SQL (go to the View menu the select SQL)
> that's generated you'll see that all <omitted> is put that part of the
> WHERE clause in for you. Most other databases aren't that
> presumptuous.

You're right. The constraint is simply a constraint - rows in this table
must have a key listed in the column/table referred to in the Primary Key.
Correct?

cr

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