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Ayuda con un Query

les comento que estoy realizando un query para clientes, la idea es que me muestre la ultima factura comprada por cada cliente, intente haciendolo con la funcioon TOP, de la siguiente manera.

SELECT TOP 1 T0.DocNum, T0.DocDate, T0.CardCode, T0.CardName FROM OINV T0 ORDER BY T0.DocNum DESC

Pero la funcion TOP solo me muestra la ultima factura.

No se si me puedan recomendar alguna funcion con el cual pueda traer esta informacion.

Salu2.

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  • Best Answer
    Posted on Oct 12, 2010 at 07:52 PM

    Necesitas utilizar la funcion MAX (docnum), de esta forma debe traerte la ultima factura

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