优点:实时,快速。减少程序带来的复杂。可维护性强,自动化。
要求:1定时。2报表
首先是确定启动Mysql EVENT: SET GLOBAL event_scheduler = 1;
第二定义EVENT:
CREATE EVENT myevent ON schedule every 10 second do
INSERT INTO dangfei (dyid,dangfei,dyname,djyear,jidu) SELECT id,jizhun,dyname,YEAR(curdate()),QUARTER(curdate()) FROM dangyuan;
CREATE EVENT TOTAL_SEASON_EVENT ON SCHEDULE EVERY 1 QUARTER STARTS DATE_ADD(DATE_ADD(DATE( CONCAT(YEAR(CURDATE()),'-',ELT(QUARTER(CURDATE ()),3,6,9,12),'-',23)),INTERVAL 1 QUARTER),INTERVAL 1 HOUR) ON COMPLETION PRESERVE ENABLE DO INSERT INTO dangfei (dyid,dangfei,dyname,djyear,jidu) SELECT id,jizhun,dyname,YEAR(curdate()),QUARTER(curdate()) FROM dangyuan;
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