Re: Please some help on a join question with sum - Mailing list pgsql-general

On Sat, 2003-04-19 at 19:29, Feite Brekeveld wrote:
> Hi,
>
> I havbe the following SQL related question.
>
> Table AA:
>
> id, seqno, price
>
> A10    1    1000.0
>
> A10    2    2000.0
>
>
>
> Table BB:
>
>
> id    seqno        subseq    price
>
> A10       1        1        10
>
> A10       1        2        20
>
> A10       1        3        30
>
> A10        2        1        25
>
>
> I would like to have a query that joins table AA and BB to the result:
>
> id    seqno    price
> A10    1        1060
> A10    2        2025


SELECT aa.id,
       aa.seqno,
       aa.price + (
                   SELECT SUM(bb.price)
                     FROM bb
                    WHERE bb.id = aa.id AND bb.seqno = aa.seqno
                  ) AS price
  FROM aa;

--
Oliver Elphick                                Oliver.Elphick@lfix.co.uk
Isle of Wight, UK                             http://www.lfix.co.uk/oliver
GPG: 1024D/3E1D0C1C: CA12 09E0 E8D5 8870 5839  932A 614D 4C34 3E1D 0C1C
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      Lord."     Romans 8:38,39