Having ?

[[RONPABLO]]

Código SQL [-]
CREATE   PROCEDURE Extra_calculo_diaferiados

@fechaI datetime,
@fechaF datetime

AS

SELECT A, B, C, sum(D) as Dias, sum(O) as Cobrar, min(Fecha) as FIni, max(fecha) as FFin
FROM   Tabla
GROUP BY A, B, C
HAVING (fecha between  @fechaI and @fechaF)
ORDER BY A, B

lo que le entendí es algo así como esto...