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Pulling back a distinct column


Pulling back a distinct column

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thomasrichardson2000
thomasrichardson2000
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--Basically this query pulls back all the outstanding invoices for sold cars, the main issue I am having is that there can be more than one car on an invoice. In that case what I need to achieve is just pull back just one of these rows because the value outstanding on the invoice stays the same.Here is an example of an invoice with more than one vehicle. So I would just be looking to pull back the top row for this invoice. The query itself pulls back 380 rows with all invoices.

SELECT vehicle.platenr, 'invoicefm' as Company, Invoice_FM.ClientId, client.Name,invoice_fm.Invoice_id as Document_Nr,Invoice_FM.Invoice_Date,Invoice_FM.Paid, Total_Value as AllValues

FROM Invoice_FM inner join Client on Invoice_FM.ClientId = Client.ClientID left join vehicle on Invoice_FM.Invoice_id = vehicle.Invoice_Nr
where Invoice_FM.deleted = 0

and client.type_client = 'Fleet' order by Document_Nr



Platenr Company Client Name Document_NR Date Value
10D1234    invoicefm    213   BRENNAN    18       2012-03-03    1    49000.00
11D4321    invoicefm    213   BRENNAN    18       2012-03-03   1    49000.00
11D2123 invoicefm    213   BRENNAN    18       2012-03-03    1 49000.00
Andy Hyslop
Andy Hyslop
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Without knowing the structure of all your tables and data its difficult to help, this may point you in the right direction (untested as no consumable data):


SELECT
Qry.platenr
, 'invoicefm' AS Company
, Qry.ClientId
, Qry.Name
, Qry.Invoice_id AS Document_Nr
, Qry.Invoice_Date
, Qry.Paid, Qry AS AllValues

FROM
(
SELECT
*
,ROW_NUMBER() OVER (PARTITION BY Invoice_FM .DOCUMENT_NR ORDER BY vehicle .Platenr) AS RowNum

FROM

Invoice_FM
INNER JOIN Client
ON Invoice_FM.ClientId = Client.ClientID

LEFT JOIN vehicle
ON Invoice_FM.Invoice_id = vehicle.Invoice_Nr

WHERE Invoice_FM.deleted = 0
AND client.type_client = 'Fleet'

) AS Qry

WHERE
Qry.RowNum = 1

ORDER BY Document_Nr



Andy

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John Mitchell-245523
John Mitchell-245523
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The top row by what? Age of vehicle? Price of vehicle? Date vehicle added to invoice? Please also provide some table DDL and sample data.

John
thomasrichardson2000
thomasrichardson2000
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Cheers andy, that worked a treat. learning all the time. Thanks.
Andy Hyslop
Andy Hyslop
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Your Welcome

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A computer lets you make more mistakes faster than any invention in human history - with the possible exceptions of handguns and tequila. Mitch Ratcliffe
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