【文件属性】：
文件名称：mysql表数据定时随机生成.txt
文件大小：3KB
文件格式：TXT
更新时间：2020-07-28 16:56:55
mysql
定时事件：
DELIMITER $$
ALTER DEFINER=`root`@`%` EVENT `NewEvent` ON SCHEDULE EVERY 30 SECOND STARTS '2018-10-08 14:00:00' ON COMPLETION NOT PRESERVE ENABLE DO CALL update_a()$$
DELIMITER ;
储存过程随机数：
DELIMITER $$
USE `figure`$$
DROP PROCEDURE IF EXISTS `update_a`$$
CREATE DEFINER=`root`@`%` PROCEDURE `update_a`()
UPDATE
fs_weather SET
temperature = ROUND (3.0 + (RAND() * 1.0),1),
humidity =ROUND (75.0 + (RAND() * 1.0),1),
noise =ROUND(25.0 + (RAND() * 45.0),1),
pm = ROUND(8.0 + (RAND() * 5.0),1),
wind_speed = CONCAT('东南风;',ROUND(2.0 + (RAND() * 1.0),1)),
oxygen = FLOOR(35200 + (RAND() * 400)),
pressure = ROUND(86.0 + (RAND() * 1.0),1),
rainfall = ROUND(0.5 + (RAND() * 0.5),1)
WHERE
id = '1'$$
DELIMITER ;