From: | "R(dot) Smith" <ship(dot)quotes(at)gmail(dot)com> |
---|---|
To: | pgsql-sql(at)postgresql(dot)org |
Subject: | Sorting data based fields in two linked tables |
Date: | 2011-05-13 15:00:16 |
Message-ID: | BANLkTikak22Fgv=jQ0DmiNf8yAB_nb3xgg@mail.gmail.com |
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Lists: | pgsql-sql |
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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Next Message | Oliver d'Azevedo Christina | 2011-05-14 12:58:54 | Re: Sorting data based fields in two linked tables |
Previous Message | Samuel Gendler | 2011-05-12 22:18:46 | Re: ordering by date for each ID |