ALTER TABLE vn.roadmap COMMENT='Rutas troncales (trailers)', MODIFY COLUMN m3 int(10) unsigned DEFAULT NULL NULL COMMENT 'Capacidad máxima del remolque', MODIFY COLUMN trailerPlate varchar(10) CHARACTER SET utf8mb3 COLLATE utf8mb3_unicode_ci DEFAULT NULL NULL, MODIFY COLUMN etd datetime NOT NULL COMMENT 'Tiempo estimado de salida', ADD eta datetime NOT NULL COMMENT 'Tiempo estimado de llegada' AFTER etd, ADD roadmapAddressFk int(11) NOT NULL AFTER `name`; -- Separamos los CHANGE por que si no arriba no se aplican ALTER TABLE vn.roadmap CHANGE driver1Fk driverFk int(10) unsigned DEFAULT NULL NULL COMMENT 'Conductor principal' AFTER driverName, CHANGE driver2Fk codriverFk int(10) unsigned DEFAULT NULL NULL COMMENT 'Copiloto' AFTER driverFk, CHANGE userFk editorFk int(10) unsigned DEFAULT NULL NULL AFTER m3;