Funciones DML: Funciones de cadena (Lower, Upper, Remplace, Str, Subtring, Right, Funciones matematicas (ABS, CEILING, FLOOR, ROUND, TRUNC, SING), Funciones Fecha-Hora(DATEADD, DATEDIFF, DAY, GETDATE, MONTH, YEAR, MAX, MIN), Detalle de la clausula GROUP BY Y HAVING