That's what I would have suggested as well, but I tried that on a test table
and it returned all t2.id's in t2.
Julien Beasley
Bridge News Asia Applications Specialist
> -----Original Message-----
> From: Rus [SMTP:[EMAIL PROTECTED]]
> Sent: Thursday, February 01, 2001 10:26 AM
> To: [EMAIL PROTECTED]
> Subject: Re: Selecting games which a given user can join
>
>
> select t2.id from gamers t1,games t2 where t1.user="jack" and
> t2.id<>t1.gid
> group by t2.id
>
> ---- Original Message -----
> From: zbynek <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Wednesday, January 31, 2001 4:31 PM
> Subject: Selecting games which a given user can join
>
>
> > Hi there!
> >
> > I'm new to SQL and I can't figure out a query which would give me the
> result
> > I need. What I want to do is this:
> >
> > I have table that stores names of players and number of the game they
> play
> > (one player can play more games concurrently). Other users can join the
> > game. For given user I want to display the games which he can join. The
> only
> > condition is that the user can't join any game which he already plays.
> >
> > If I have this
> >
> > +-----+---------+
> > | gid | user |
> > +-----+---------+
> > | 1 | jack |
> > | 1 | john |
> > | 1 | peter |
> > | 1 | richard |
> > | 2 | john |
> > | 2 | richard |
> > | 3 | peter |
> > | 4 | jack |
> > | 4 | peter |
> > | 5 | peter |
> > | 5 | john |
> > +-----+---------+
> >
> > then for jack I want numbers 2, 3, 5 but not 4; for peter it should be 2
> and
> > no other.
> >
> > I'll appreciate your advice!
> >
> > zbynek
> >
> >
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>
>
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