Re: summary VIEW

I've managed it by doing:

create view capacity as
SELECT matrixaircraft AS capaircraft, matrixseat AS capseat,
sum(matrix.matrixwidth) AS capcount
FROM matrix
GROUP BY matrixaircraft, matrixseat;

If there's a better way I'l appreciate being shown.

Ta

Gary

On Monday 06 May 2002 12:41 pm, Gary Stainburn wrote:
> Hi all,
>
> Taking that I have an aircraft seating table, as below,
>
> How could I create a VIEW to replace the capacity table shown underneath?
>
> create table matrix (
> matrixaircraft character varying (4) references aircraft(aircraftid) not
> null,
> matrixrow int4 not null,
> matrixseat character references seating(seatid),
> matrixwidth int4 not null,
> primary key (matrixaircraft, matrixrow)
> );
>
> -- capacity should be a VIEW based on matrix
> create table capacity (
> capaircraft character varying (4) references aircraft(aircraftid) not
> null, capseat character references seating(seatid) not null,
> capcount int4,
> primary key (capaircraft, capseat)
> );

--
Gary Stainburn

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