20120902. Cambio para que tome las modificaciones sobre Precios y que siga la rueda 
<pre>
CREATE VIEW `preciosvigact` AS
SELECT `preciosvigentes`.`Lista` AS `Lista`,
       `preciosvigentes`.`ProductoID` AS `ProductoID`,
       `productos`.`Descripcion` AS `Descripcion`,
       `productos`.`CategoriaID` AS `CategoriaID`,
       `productos`.`ProveedorID` AS `ProveedorID`,
       `preciosvigentes`.`PrecioProd00` AS `PrecioProd00`,
       `productos`.`CoefP00P01` AS `CoefP00P01`,
       `preciosvigentes`.`PrecioProd01` AS `PrecioProd01`,
       `productos`.`CoefP00P02` AS `CoefP00P02`,
       `preciosvigentes`.`PrecioProd02` AS `PrecioProd02`,
       `productos`.`CoefP00P03` AS `CoefP00P03`,
       `preciosvigentes`.`PrecioProd03` AS `PrecioProd03`
FROM (`productos`
      JOIN `preciosvigentes`)
WHERE (`productos`.`ProductoID` = `preciosvigentes`.`ProductoID`)
ORDER BY `preciosvigentes`.`ProductoID
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