创建测试表

复制代码 代码如下:

CREATE TABLE t

(

v VARCHAR(100) NOT NULL

) ENGINE INNODB DEFAULT CHARSET=utf8;

创建定时器 调用的存储过程

DELIMITER $$

DROP PROCEDURE IF EXISTS e_test $$

CREATE PROCEDURE e_test()

BEGIN

INSERT INTO t VALUES('1');

END $$

DELIMITER ;

要使定时起作用 MySQL的常量GLOBAL event_scheduler必须为on或者是1

-- 查看是否开启定时器

SHOW VARIABLES LIKE '%sche%';

-- 开启定时器 0：off 1：on

SET GLOBAL event_scheduler = 1;

-- 创建事件

--每隔一秒自动调用e_test()存储过程

CREATE EVENT IF NOT EXISTS event_test

ON SCHEDULE EVERY 1 SECOND

ON COMPLETION PRESERVE

DO CALL e_test();

-- 开启事件

ALTER EVENT event_test ON

COMPLETION PRESERVE ENABLE;

-- 关闭事件

ALTER EVENT event_test ON

COMPLETION PRESERVE DISABLE;

从现在开始每隔九天定时执行

CREATE EVENT EVENT1

ON SCHEDULE EVERY 9 DAY STARTS NOW()

ON COMPLETION PRESERVE ENABLE

DO

BEGIN

CALL TOTAL();

END

每个月的一号凌晨1 点执行

CREATE EVENT EVENT2

ON SCHEDULE EVERY 1 MONTH STARTS DATE_ADD(DATE_ADD(DATE_SUB(CURDATE(),INTERVAL DAY(CURDATE())-1 DAY), INTERVAL 1 MONTH),INTERVAL 1 HOUR)

ON COMPLETION PRESERVE ENABLE

DO

BEGIN

CALL STAT();

END

每个季度一号的凌晨2点执行

CREATE EVENT TOTAL_SEASON_EVENT

ON SCHEDULE EVERY 1 QUARTER STARTS DATE_ADD(DATE_ADD(DATE( CONCAT(YEAR(CURDATE()),'-',ELT(QUARTER(CURDATE()),1,4,7,10),'-',1)),INTERVAL 1 QUARTER),INTERVAL 2 HOUR)

ON COMPLETION PRESERVE ENABLE

DO

BEGIN

CALL SEASON_STAT();

END

每年1月1号凌晨四点执行

CREATE EVENT TOTAL_YEAR_EVENT

ON SCHEDULE EVERY 1 YEAR STARTS DATE_ADD(DATE(CONCAT(YEAR(CURDATE()) + 1,'-',1,'-',1)),INTERVAL 4 HOUR)

ON COMPLETION PRESERVE ENABLE

DO

BEGIN

CALL YEAR_STAT();

END

MySQL的event在进行按月，季，年进行自动调用存储过程时，为了测试可以把系统改为年的最后一天，如2010-12-31 23：59：55;