MySQL中的定时执行。

 

  查看event是否开启

    show variables like \’%sche%\’;

    将事件计划开启

    set global event_scheduler =1;

    创建存储过程test

     CREATE PROCEDURE test ()

     BEGIN

     update examinfo SET endtime = now() WHERE id = 14;

     END;

     创建event e_test

     create event if not exists e_test

     on schedule every 30 second

     on completion preserve

     do call test();

     每隔30秒将执行存储过程test,将当前时间更新到examinfo表中id=14的记录的endtime字段中去.

    

     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;

     以上测试均成功,测试环境为mysql 5.4.2-beta-community mysql community server(GPL)