From: DA Morgan <damorgan@exesolutions.com>
To: pgsql-sql@postgresql.org
Subject: Re: double linked list
Date: Tue, 28 Jan 2003 08:45:21 -0800
Message-ID: <3E36B3A1.43E424F3@exesolutions.com> (raw)
References: <2ee07259.0301280744.582e4b7c@posting.google.com>
Juergen wrote:
> Hi folks!,
>
> I've got a table called 'link_t' containing a collection of seller -
> buyer relations between two parties.
>
> sql> select * from link_t
>
> S B
> - -
> C X
> A B
> B C
> C D
> D E
>
> 5 rows selected.
>
> I am looking for a select statement that returns the concatenation of
> seller - buyer relations between the first seller 'A' and the last
> buyer 'B'.
>
> the result should be
>
> S B
> - -
> A B
> B C
> C D
> D E
>
> Currently I fumbling around with self joins but haven't figured out
> yet.
> Any suggestions
>
> Many tanks in advance
>
> Cheers
>
> Juergen
Look at the CONNECT BY built-in function.
Daniel Morgan
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To: pgsql-sql@postgresql.org
Cc: damorgan@exesolutions.com
Subject: Re: double linked list
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