无权限 执行 set global event_scheduler = on;

mysql的定时任务一般用event(事件)来完成，触发器无法完成。一、通过mysql的命令行客户端来完成 1、set global event_scheduler =1; //开启event_scheduler 执行这个语句如果出现，可在mysql的配置文档中设置[mysqld]段中添加 event_scheduler=ON 如果重启mysql；这种情况下依然出错，Error Code: 1290. The MySQL server is running with the --event-scheduler=DISABLED or --skip-grant-tables option so it cannot execute this statement，这个错误是说启动服务器时如果指定了--skip-grant-tables选项，则event_scheduler则自动被设置为DISABLED。命令行或配置文件的设置都会被覆盖。建议重现安装mysql或是修改启动参数(在系统服务中指定)。 查看event_scheduler状态：show status like '%event%'; 或SELECT @@event_scheduler; 2、CREATE PROCEDURE Mypro() //创建存储过程 BEGIN update userinfo SET endtime = now() WHERE id = '155'; END; 3、创建event My_enevt,每隔三十秒执行一次 create event if not exists e_test on schedule every 30 second on completion preserve do call Mypro(); 4、关闭事件 alter event e_test ON COMPLETION PRESERVE DISABLE; 5、开启事件 alter event e_test ON COMPLETION PRESERVE ENABLE; 语法： CREATE EVENT [IF NOT EXISTS] event_name ON SCHEDULE schedule [ON COMPLETION [NOT] PRESERVE] [ENABLE | DISABLE] [COMMENT 'comment'] DO sql_statement; schedule: AT TIMESTAMP [+ INTERVAL INTERVAL] | EVERY INTERVAL [STARTS TIMESTAMP] [ENDS TIMESTAMP] INTERVAL: quantity {YEAR | QUARTER | MONTH | DAY | HOUR | MINUTE | WEEK | SECOND | YEAR_MONTH | DAY_HOUR | DAY_MINUTE | DAY_SECOND | HOUR_MINUTE | HOUR_SECOND | MINUTE_SECOND}

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