mysql定时任务，每天凌晨1点执行

执行mysql语句 DO后是需要执行的sql

每天凌晨1点执行

CREATE EVENT IF NOT EXISTS temp_event   
    ON SCHEDULE EVERY 1 DAY STARTS DATE_ADD(DATE_ADD(CURDATE(), INTERVAL 1 DAY), INTERVAL 1 HOUR)   
    ON COMPLETION PRESERVE ENABLE   
    DO update users set support=0 where support=1;