Buenas tardes A propósito de una consulta que hice a la lista, la resolví de este modo: SELECT statistics.datetime AS 'localuse', borrowers.surname,borrowers.firstname, borrowers.cardnumber, items.barcode, biblio.title FROM borrowers LEFT JOIN statistics ON (statistics.borrowernumber=borrowers.borrowernumber) LEFT JOIN items ON (items.itemnumber = statistics.itemnumber) LEFT JOIN biblio ON (biblio.biblionumber = items.biblionumber) WHERE statistics.type='onsite_checkout' AND date(statistics.datetime) BETWEEN <<Item issued BETWEEN (yyyy-mm-dd)|date>> AND <<and (yyyy-mm-dd)|date>> AND statistics.branch= <<Select library|branches>> ORDER BY borrowers.surname ASC Se pueden cambiar algunos parámetros de orden pero funciona.Saludos cordiales Lic. Brenda RamirezOro Verde. ERhttp://biblioteca-fing.uner.edu.ar/