From: | Oliver d'Azevedo Christina <oliveiros(dot)cristina(at)gmail(dot)com> |
---|---|
To: | "R(dot) Smith" <ship(dot)quotes(at)gmail(dot)com> |
Cc: | "pgsql-sql(at)postgresql(dot)org" <pgsql-sql(at)postgresql(dot)org> |
Subject: | Re: Sorting data based fields in two linked tables |
Date: | 2011-05-14 12:58:54 |
Message-ID: | 578F5EAE-5567-4254-AE34-380B249E8F63@gmail.com |
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Thread: | |
Lists: | pgsql-sql |
Can you provide An example?
Best,
Oliveiros
Enviado via iPhone
Em 13/05/2011, às 04:00 PM, "R. Smith" <ship(dot)quotes(at)gmail(dot)com> escreveu:
> Hi,
>
> I am looking for a way to sort data returned from two tables with the
> first sort based on a field from table A and the secord sort based on
> the results of the first sort but the sort field is from table B.
> While I can sort on either fields from either table, I cannot get it
> to work on both. I have tried a crosstab query, but this a fails as
> the number of rows returned from TABLE B for each row in TABLE A is an
> unknown. I tried creating a temporary table, to then sort on, but this
> failed as well. Example layout below:
>
> Table A
>
> ID FIELD1 FIELD2
>
> Table B
>
> ID, A.ID FIELD1,FIELD2
>
> Output Based on sorting A.FIELD2, then B.FIELD1
>
> A.ID,A.FIELD1,A.FIELD2, B.FIELD1,B.FIELD2, B.FIELD1,B.FIELD2, B.FIELD1,B.FIELD2
>
> Can anyone help me with this?
>
> Regards
>
> --
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