以下例子主要是实现简单的mysql 定时作业,需要的朋友可以参考下。
1、在mysql 中建立一个数据库 test1文章源自很文博客https://www.hinwi.com/很文博客-https://www.hinwi.com/17703.html
语句:create database test1文章源自很文博客https://www.hinwi.com/很文博客-https://www.hinwi.com/17703.html
2、创建表examinfo文章源自很文博客https://www.hinwi.com/很文博客-https://www.hinwi.com/17703.html
create table examinfo(文章源自很文博客https://www.hinwi.com/很文博客-https://www.hinwi.com/17703.html
id int auto_increment not null,文章源自很文博客https://www.hinwi.com/很文博客-https://www.hinwi.com/17703.html
endtime datetime,文章源自很文博客https://www.hinwi.com/很文博客-https://www.hinwi.com/17703.html
primary key(id)文章源自很文博客https://www.hinwi.com/很文博客-https://www.hinwi.com/17703.html
);
3 插入数据:
insert into examinfo values('1','2011-4-23 23:26:50');
4 创建存储过程test
CREATE PROCEDURE test ()
BEGIN
update examinfo SET endtime = now() WHERE id = 1;
END;
5、 创建event e_test
- CREATE EVENT if not exists e_test
- on schedule every 30 second
- on completion preserve
- do call test();
6、查看event是否开启: show variables like '%sche%';
将事件计划开启: set global event_scheduler=1;
关闭事件任务: alter event e_test ON COMPLETION PRESERVE DISABLE;
开户事件任务: alter event e_test ON COMPLETION PRESERVE ENABLE;
7、运行查询结果即可出现想要的结果。
结果显示如下:
原始数据:
过一段时间查询后的数据: