mysql定时任务

定时任务
查看event是否开启: show variables like '%sche%';
将事件计划开启: set global event_scheduler=1;
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;

简单实例.
创建表 CREATE TABLE test(endtime DATETIME);

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();
CREATE EVENT if not exists e_test
          on schedule every 1 second
          on completion preserve
     do insert into aa values (now());
     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.

触发器
delimiter //
CREATE TRIGGER trigger_htmlcache BEFORE INSERT ON t_model
  FOR EACH ROW BEGIN
    if CURDATE()<NEW.time then
    INSERT INTO t_htmlcache(id,url) value(NEW.id,NEW.url);
    end if;
END;
//
通过建表->Insert的方式测试.

DELIMITER $$
DROP PROCEDURE IF EXISTS `njfyedepartment`.`sp_ireport` $$
CREATE DEFINER=`root`@`%` PROCEDURE `sp_ireport`(IN qureyType VARCHAR(20),IN daytime VARCHAR(20),IN p_ids VARCHAR(50),IN c_ids VARCHAR(50),IN ct1_ids VARCHAR(50),IN ct2_ids VARCHAR(50),IN ku VARCHAR(50),IN ireport_chart varchar(50))
BEGIN
DECLARE i INT DEFAULT 1;
IF qureyType  = 'insert' OR qureyType  = 'INSERT' THEN
INSERT INTO ireport
(pid,cid,ct1id,ct2id,creatTime,crawlerNumber,WEEK)
SELECT province AS pid,
cityid AS cid,
category1id AS ct1id,
category2id AS ct2id,
(CURRENT_DATE) AS creatTime,COUNT(*) AS crawlerNumber,
(FLOOR(DAYOFMONTH(CURRENT_DATE)/8)+1) AS WEEK
FROM t_model t
WHERE TIME > (CURRENT_DATE-1) AND TIME < (CURRENT_DATE)
AND province IS NOT NULL
AND cityid IS NOT NULL
GROUP BY province,cityid,category1id,category2id;
END IF;
IF qureyType  = 'month' OR qureyType  = 'MONTH' THEN
IF EXISTS(SELECT * FROM information_schema.`TABLES` T WHERE TABLE_NAME = 'tmp_result' AND TABLE_SCHEMA = ku) THEN
DROP TABLE tmp_result;
END IF;
CREATE TABLE tmp_result
(pid VARCHAR(50),pName VARCHAR(50),cid VARCHAR(50),cName VARCHAR(50),ct1id VARCHAR(50),ct1Name VARCHAR(50),
ct2id VARCHAR(50),ct2Name VARCHAR(50),month1 INTEGER,month2 INTEGER,month3 INTEGER,month4 INTEGER,month5 INTEGER,
month6 INTEGER,month7 INTEGER,month8 INTEGER,month9 INTEGER,month10 INTEGER,month11 INTEGER,month12 INTEGER,heji INTEGER);

lable_exit: BEGIN
SET @SqlCmd = ' INSERT INTO tmp_result (pid,pname,cid,cname,ct1id,ct1name,ct2id,ct2name)
SELECT pid,pname,cid,cname,ct1id,ct1name,ct2id,ct2name FROM
(SELECT ia.pid,a.name AS pname,ia.cid,b.name AS cname,ia.ct1id,c.name AS ct1name,ia.ct2id,d.name AS ct2name
FROM ireport ia
LEFT JOIN province a ON ia.pid=a.id
LEFT JOIN city b ON ia.cid=b.id
LEFT JOIN t_category1 c ON ia.ct1id=c.id
LEFT JOIN t_category2 d ON ia.ct2id=d.id
WHERE YEAR(ia.creatTime)=YEAR(?) ';
IF p_ids IS NOT NULL AND p_ids <> '' THEN
SET @SqlCmd = CONCAT(@SqlCmd , 'and ia.pid in (');
SET @SqlCmd = C