RE: Distinct Values

Hello Nicolas,

the query you want to construct cannot work because the result of a
query always consists of a consistent table. That means that in a
two-column-table every item on the "left side" has one single opponent
on "the right side". How should your table be built up at all?

I suppose that you want something like the following:

Author URL
------- --------
A http://www.xyz.com
http://www.abc.com
- -
B http://www.def.com
http://www.ijk.com
http://www.rst.com
- -

If that is what you want, you cannot manage it.

Hope this helps ... although it does not really help you :-)

Best regards, Jens Hartwig

-----------------------------------------------------

T-Systems
Project Manager
debis Systemhaus GEI GmbH
Address: Eichhornstraße 3, 10785 Berlin
Postal Address: 10785 Berlin
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E-Mail: jens(dot)hartwig(at)t-systems(dot)de
Internet: http://www.t-systems.de

> -----Ursprüngliche Nachricht-----
> Von: Nicolas [mailto:bnk(at)medialife(dot)net]
> Gesendet: Mittwoch, 30. Mai 2001 20:23
> An: pgsql-sql(at)postgresql(dot)org
> Betreff: [SQL] Distinct Values
>
>
> Hi,
>
> I'm trying to retreive DISTINCT Values from a two colomn table called
> "Books". The colomns are named "Author" and "URL".
> DISTINCT values should be retieved from the "Author" Colomn ,
> and then I
> should be able to retrieve the corresponding URL.
> How do I build the SQL Query ?
> I tried to use: "SELECT DISTINCT Author FROM Books" But this
> does not allow
> me to fetch the URL value on the other colomn.
>
> Thanks
> Nicolas
>
>
>
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