Re: Two joins on same foreign key - Mailing list pgsql-general

From elein
Subject Re: Two joins on same foreign key
Date
Msg-id 20040131121630.X14914@cookie.varlena.com
Whole thread Raw
In response to Re: Two joins on same foreign key  (elein <elein@varlena.com>)
List pgsql-general
Ooops.  I've sent the wrong URL for my own darn site.
This is the correct URL.

http://www.varlena.com/GeneralBits/56.php

Sorry for the confusion.

--elein

On Sat, Jan 31, 2004 at 11:09:37AM -0800, elein wrote:
> PostgreSQL General Bits Issue #56 has an article on Join Basics
> which also has an example of multiple table joins.
>
> http://cookie.varlena.com/varlena/GeneralBits/56.php
>
> --elein
> elein@varlena.com
>
> On Fri, Jan 30, 2004 at 03:03:35PM -0700, Anony Mous wrote:
> > Hi,
> >
> >
> >
> > I??m fairly new to this database, and have read much discussion on
> > sub-queries.  I??ve seen that they can be great for some queries, and downright
> > slow for others.  I have a table with two foreign keys referencing another
> > table, like:
> >
> >
> >
> > Table #1
> >
> > employee_id (pk)
> >
> > employee_name
> >
> >
> >
> > Table #2
> >
> > teamleader_employee_id
> >
> > backup_employee_id
> >
> >
> >
> > both fields in table 2 need to do a lookup in table 1 to get the name of the
> > actual employee.  Do I need to use nested queries to accomplish this?  Any help
> > is greatly appreciated!
> >
> >
> >
> > -AM
> >
>
> ---------------------------(end of broadcast)---------------------------
> TIP 1: subscribe and unsubscribe commands go to majordomo@postgresql.org

pgsql-general by date:

Previous
From: "Rajat Katyal"
Date:
Subject: Fw: [JDBC] Trigger function aborts the transaction on exception
Next
From: Tom Lane
Date:
Subject: Re: Large object insert/update and oid use