MySQL定時器開啟、調用 創建測試表 www.2cto.com 1 CREATE TABLE t 2 ( 3 v VARCHAR(100) NOT NULL 4 ) ENGINE INNODB DEFAULT CHARSET=utf8; 創建定時器 調用的存儲過程 1 DELIMITER $$ 2 DROP PROCEDURE IF EXISTS e_test $$ 3 CREATE PROCEDURE e_test() 4 BEGIN 5 INSERT INTO t VALUES('1'); 6 END $$ 7 DELIMITER ; 要使定時起作用 MySQL的常量GLOBAL event_scheduler必須為on或者是1 -- 查看是否開啟定時器 1 SHOW VARIABLES LIKE '%sche%'; -- 開啟定時器 0：off 1：on 1 SET GLOBAL event_scheduler = 1; -- 創建事件 --每隔一秒自動調用e_test()存儲過程 1 CREATE EVENT IF NOT EXISTS event_test 2 ON SCHEDULE EVERY 1 SECOND 3 ON COMPLETION PRESERVE 4 DO CALL e_test(); -- 開啟事件 1 ALTER EVENT event_test ON 2 COMPLETION PRESERVE ENABLE; -- 關閉事件 1 ALTER EVENT event_test ON 2 COMPLETION PRESERVE DISABLE; 從現在開始每隔九天定時執行 1 CREATE EVENT EVENT1 2 ON SCHEDULE EVERY 9 DAY STARTS NOW() 3 ON COMPLETION PRESERVE ENABLE 4 DO 5 BEGIN 6 CALL TOTAL(); 7 END 每個月的一號凌晨1 點執行 1 CREATE EVENT EVENT2 2 ON SCHEDULE EVERY 1 MONTH STARTS DATE_ADD(DATE_ADD(DATE_SUB(CURDATE(),INTERVAL DAY(CURDATE())-1 DAY), INTERVAL 1 MONTH),INTERVAL 1 HOUR) 3 ON COMPLETION PRESERVE ENABLE 4 DO 5 BEGIN 6 CALL STAT(); 7 END 每個季度一號的凌晨2點執行 1 CREATE EVENT TOTAL_SEASON_EVENT 2 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) 3 ON COMPLETION PRESERVE ENABLE 4 DO 5 BEGIN 6 CALL SEASON_STAT(); 7 END 每年1月1號凌晨四點執行 1 CREATE EVENT TOTAL_YEAR_EVENT 2 ON SCHEDULE EVERY 1 YEAR STARTS DATE_ADD(DATE(CONCAT(YEAR(CURDATE()) + 1,'-',1,'-',1)),INTERVAL 4 HOUR) 3 ON COMPLETION PRESERVE ENABLE 4 DO 5 BEGIN 6 CALL YEAR_STAT(); 7 END MySQL的event在進行按月，季，年進行自動調用存儲過程時，為了測試可以把系統改為年的最後一天，如2010-12-31 23：59：55;
