[development] Problem with DATE_FORMAT and Module

Hello: I have a problem. I like to list the event for the actual day. This it's my sql query: SELECT * FROM {node} INNER JOIN {content_type_event} ON {node.vid}={content_type_event.vid} INNER JOIN {node_revisions} ON {node.vid}={node_revisions.vid} WHERE DATE_FORMAT( from_unixtime( content_type_event.field_fecha_value ) , "%d-%m-%Y" ) = "'.date("d-m-Y").'" If i test this sql query in phpmyadmin, this work fine, but, if i test this query in my drupal module this module don't work. But this work if i delete %d WHERE DATE_FORMAT( from_unixtime( content_type_event.field_fecha_value ) , "%d-%m-%Y" ) = "'.date("d-m-Y").'" What can i do for this ?