DELIMITER $$ CREATE OR REPLACE DEFINER=`vn`@`localhost` PROCEDURE `vn`.`ticketClon_OneYear`(vTicketFk INT) BEGIN DECLARE vShipped DATE; DECLARE vMaxDated DATE; SELECT shipped, TIMESTAMPADD(YEAR,1,shipped) INTO vShipped, vMaxDated FROM vn.ticket WHERE id = vTicketFk; WHILE vShipped <= vMaxDated DO SET vShipped = TIMESTAMPADD(WEEK, 1, vShipped); CALL vn.ticketClon(vTicketFk, vShipped); END WHILE; END$$ DELIMITER ;