From: | GCS <gcs(at)c64(dot)rulez(dot)org> |
---|---|
To: | pgsql-novice(at)postgresql(dot)org |
Subject: | Table joining problem. |
Date: | 2001-05-26 20:22:34 |
Message-ID: | Pine.LNX.3.96.1010526221516.26851C-100000@c64.rulez.org |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-novice |
Hi,
I am not really novice, but not good either. I have a problem if the
table is empty, my select does not return anything then.
I have three tables,
1. users(nick varchar(),number int serial)
2. teams(owner references users)
3. challange(who references users)
I want to get all the users, who has a team, but not yet in the challange
table:
select users.nick, users.number from users, teams, challange where
teams.owner=users.number and challange.who!=users.number;
It does not return anything if the challange table is empty. If I insert a
line into it, it is ok. Can anyone help me out?
select users.nick, users.number from users, teams where
teams.owner=users.number;
works correctly ofcourse, but I _must_ check the challange table too.
Any help is greatly appreciated,
Laszlo Boszormenyi,jr.
From | Date | Subject | |
---|---|---|---|
Next Message | Johan Daine | 2001-05-27 02:41:17 | Re: LIKE upper('%$info%') -- (like google) |
Previous Message | Johan Daine | 2001-05-26 18:43:39 | Re: LIKE upper('%$info%') -- (like google) |