CREATE EVENT test_event
ON SCHEDULE EVERY 1 DAY STARTS '2015-08-06 00:00:00' ENDS '2020-07-14 00:00:00'
DO UPDATE sys_param
SET param_value=param_value+FLOOR(20 + RAND() * (11)),
remark = remark +FLOOR(20 + RAND() * (11)),
param_key=FLOOR(2500 + RAND() * (500))
WHERE param_id='10000034';