Re: query help - Mailing list pgsql-general

From Stephan Szabo
Subject Re: query help
Date
Msg-id Pine.BSF.4.21.0108301721130.55818-100000@megazone23.bigpanda.com
Whole thread Raw
In response to query help  ("G.L. Grobe" <gary@grobe.net>)
List pgsql-general
Maybe this?
select label from TableB, TableA
 where TableB.idA=TableA.idA
  and TableA.name=<whatever>

On Thu, 30 Aug 2001, G.L. Grobe wrote:

> Hi all,
>
> How would I get TableB.label if all I know about is TableA.name?
>
> I was thinking about a query on TableA first, then within the while
> (rs.next()), I'd do another query using the result set from A on B, but I
> don't like that much, and it seems kind of slow.
>
> Any help much appreciated!
>
> TableA
> idA | name | class
> -----------------
> 11    test1   1
> 12    test2   1
> 13    test3   2
> 14    test4   2
>
> TableB
> idB | idA | label
> ----------------
> 1     11     nameA
> 2     12     nameB
> 3     13     nameC
> 4     14     nameD


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