rem alter session set nls_date_format = 'dd/mm/yyyy hh:mi:ss';

SELECT SUM(PHoras * PHorPrec) FROM ParTra WHERE PObra = 'CAR' AND TRIM(PCenCos) = 'OB' 
AND PFech BETWEEN '01/01/2001" + objBBDD.SQL.TratarFecha(objDateTimeInicio) + " AND " + objBBDD.SQL.TratarFecha(objDateTimeFin) + " AND PHoras IS NOT NULL AND PHorPrec IS NOT NULL AND PCap NOT LIKE '#%'";