INSERT
INTO MASTER
( MODELO, MARCA, DESCRIPCION, Precio, [PRECIO PUBLICO], Type,
[Size], supplier, erate )
SELECT MASTER1.MODELO, MASTER1.MARCA,
MASTER1.DESCRIPCION, MASTER1.Precio, MASTER1.[PRECIO
PUBLICO], MASTER1.Type, MASTER1.Size,
MASTER1.supplier, MASTER1.erate
FROM MASTER1
Inner Join MASTER
On Master1.Modelo <> Master.Modelo