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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 ` 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 = CONCAT(@SqlCmd, p_ids); SET @SqlCmd = CONCAT(@SqlCmd, ')'); END IF; IF c_ids IS NOT NULL AND c_ids <> '' THEN SET @SqlCmd = CONCAT(@SqlCmd , 'and ia.cid in ('); SET @SqlCmd = CONCAT(@SqlCmd, c_ids); SET @SqlCmd = CONCAT(@SqlCmd, ')'); END IF; IF ct1_ids IS NOT NULL AND ct1_ids <> '' THEN SET @SqlCmd = CONCAT(@SqlCmd , 'and ia.ct1id in ('); SET @SqlCmd = CONCAT(@SqlCmd, ct1_ids); SET @SqlCmd = CONCAT(@SqlCmd, ')'); END IF; IF ct2_ids IS NOT NULL AND ct2_ids <> '' THEN SET @SqlCmd = CONCAT(@SqlCmd , 'and ia.ct2id in ('); SET @SqlCmd = CONCAT(@SqlCmd, ct2_ids); SET @SqlCmd = CONCAT(@SqlCmd, ')'); END IF; SET @SqlCmd = CONCAT(@SqlCmd , ') AS ir GROUP BY pid,pname,cid,cname,ct1id,ct1name,ct2id,ct2name;'); PREPARE stmt1 FROM @SqlCmd; SET @a = daytime; EXECUTE stmt1 USING @a; DEALLOCATE PREPARE stmt1; LEAVE lable_exit; END lable_exit;

WHILE i <= 12 DO

lable_exit: BEGIN SET @SqlCmd = 'UPDATE tmp_result AS a, ( SELECT pid,cid,ct1id,ct2id,SUM(crawlerNumber) AS crawlerNumber FROM (SELECT pid,cid,ct1id,ct2id,crawlerNumber FROM ireport WHERE MONTH(creatTime)=? AND YEAR(creatTime)=YEAR(?)) AS ir GROUP BY pid,cid,ct1id,ct2id ) AS b SET a.month'; SET @SqlCmd = CONCAT(@SqlCmd , i); SET @SqlCmd = CONCAT(@SqlCmd , '=b.crawlerNumber '); SET @SqlCmd = CONCAT(@SqlCmd , 'WHERE a.pid=b.pid AND a.cid=b.cid AND a.ct1id=b.ct1id AND a.ct2id=b.ct2id; '); PREPARE stmt1 FROM @SqlCmd; SET @a = i; SET @b = daytime; EXECUTE stmt1 USING @a,@b; DEALLOCATE PREPARE stmt1; LEAVE lable_exit; END lable_exit; lable_exit: BEGIN SET @SqlCmd = 'UPDATE tmp_result SET month'; SET @SqlCmd = CONCAT(@SqlCmd , i); SET @SqlCmd = CONCAT(@SqlCmd , ' = 0 WHERE month'); SET @SqlCmd = CONCAT(@SqlCmd , i); SET @SqlCmd = CONCAT(@SqlCmd , ' IS NULL'); PREPARE stmt1 FROM @SqlCmd; EXECUTE stmt1; DEALLOCATE PREPARE stmt1; LEAVE lable_exit; END lable_exit; SET i = i + 1; END WHILE; UPDATE tmp_result SET heji=month1+month2+month3+month4+month5+month6+month7+month8+month9+month10+month11+month12;

INSERT INTO tmp_result (pid,pname,cid,cname,ct1id,ct1name,ct2id,ct2name,month1,month2,month3,month4,month5,month6,month7,month8,month9,month10,month11,month12,heji)

SELECT '' AS pid,'--' AS pname,'' AS cid,'总合计:' AS cname,'' AS ct1id,'--' AS ct1name,'' AS ct2id,'--' AS ct2name,SUM(month1) AS month1,SUM(month2) AS month2,SUM(month3) AS month3,SUM(month4) AS month4, SUM(month5) AS month5,SUM(month6) AS month6,SUM(month7) AS month7,SUM(month8) AS month8,SUM(month9) AS month9,SUM(month10) AS month10,SUM(month11) AS month11,SUM(month12) AS month12,SUM(heji) AS heji FROM tmp_result;

IF ireport_chart  = 'report' OR ireport_chart  = 'REPORT' THEN

SELECT pid,pName,cid,cName,ct1id,ct1Name,ct2id,ct2Name,month1,month2,month3,month4,month5,month6,month7,month8,month9,month10,month11,month12,heji FROM tmp_result; END IF; IF ireport_chart  = 'chart' OR ireport_chart  = 'CHART' THEN SELECT '' AS pid,pName,'' AS cid,'' AS cName,'' AS ct1id,'' AS ct1Name,'' AS ct2id,'' AS ct2Name,SUM(month1) as month1,SUM(month2) as month2,SUM(month3) as month3,SUM(month4) as month4, SUM(month5) as month5,SUM(month6) as month6,SUM(month7) as month7,SUM(month8) as month8,SUM(month9) as month9,SUM(month10) as month10,SUM(month11) as month11,SUM(month12) as month12,'' AS heji FROM (SELECT pid,pName,cid,cName,ct1id,ct1Name,ct2id,ct2Name,month1,month2,month3,month4,month5,month6,month7,month8,month9,month10,month11,month12 FROM tmp_result WHERE pname <> '--') AS ir GROUP BY pid; END IF; END IF; IF qureyType  = 'week' OR qureyType  = 'WEEK' 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),week1 INTEGER,week2 INTEGER,week3 INTEGER,week4 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(?) And MONTH(ia.creatTime)=MONTH(?) '; IF p_ids IS NOT NULL AND p_ids <> '' THEN SET @SqlCmd = CONCAT(@SqlCmd , 'and ia.pid in ('); SET @SqlCmd = CONCAT(@SqlCmd, p_ids); SET @SqlCmd = CONCAT(@SqlCmd, ')'); END IF; IF c_ids IS NOT NULL AND c_ids <> '' THEN SET @SqlCmd = CONCAT(@SqlCmd , 'and ia.cid in ('); SET @SqlCmd = CONCAT(@SqlCmd, c_ids); SET @SqlCmd = CONCAT(@SqlCmd, ')'); END IF; IF ct1_ids IS NOT NULL AND ct1_ids <> '' THEN SET @SqlCmd = CONCAT(@SqlCmd , 'and ia.ct1id in ('); SET @SqlCmd = CONCAT(@SqlCmd, ct1_ids); SET @SqlCmd = CONCAT(@SqlCmd, ')'); END IF; IF ct2_ids IS NOT NULL AND ct2_ids <> '' THEN SET @SqlCmd = CONCAT(@SqlCmd , 'and ia.ct2id in ('); SET @SqlCmd = CONCAT(@SqlCmd, ct2_ids); SET @SqlCmd = CONCAT(@SqlCmd, ')'); END IF; SET @SqlCmd = CONCAT(@SqlCmd , ') AS ir GROUP BY pid,pname,cid,cname,ct1id,ct1name,ct2id,ct2name;'); PREPARE stmt1 FROM @SqlCmd; SET @a = daytime; EXECUTE stmt1 USING @a,@a; DEALLOCATE PREPARE stmt1; LEAVE lable_exit; END lable_exit;

WHILE i <= 4 DO

  lable_exit: BEGIN SET @SqlCmd = 'UPDATE tmp_result AS a, ( SELECT pid,cid,ct1id,ct2id,SUM(crawlerNumber) AS crawlerNumber FROM (SELECT pid,cid,ct1id,ct2id,crawlerNumber FROM ireport WHERE WEEK=? AND MONTH(creatTime)=MONTH(?)) AS ir GROUP BY pid,cid,ct1id,ct2id ) AS b SET a.week'; SET @SqlCmd = CONCAT(@SqlCmd , i); SET @SqlCmd = CONCAT(@SqlCmd , '=b.crawlerNumber '); SET @SqlCmd = CONCAT(@SqlCmd , 'WHERE a.pid=b.pid AND a.cid=b.cid AND a.ct1id=b.ct1id AND a.ct2id=b.ct2id; '); PREPARE stmt1 FROM @SqlCmd; SET @a = i; SET @b = daytime; EXECUTE stmt1 USING @a,@b; DEALLOCATE PREPARE stmt1; LEAVE lable_exit;     END lable_exit;   lable_exit: BEGIN   SET @SqlCmd = 'UPDATE tmp_result SET week'; SET @SqlCmd = CONCAT(@SqlCmd , i); SET @SqlCmd = CONCAT(@SqlCmd , ' = 0 WHERE week'); SET @SqlCmd = CONCAT(@SqlCmd , i); SET @SqlCmd = CONCAT(@SqlCmd , ' IS NULL'); PREPARE stmt1 FROM @SqlCmd; EXECUTE stmt1; DEALLOCATE PREPARE stmt1; LEAVE lable_exit;   END lable_exit;   SET i = i + 1; END WHILE; UPDATE tmp_result SET heji=week1+week2+week3+week4;

INSERT INTO tmp_result (pid,pname,cid,cname,ct1id,ct1name,ct2id,ct2name,week1,week2,week3,week4,heji)

SELECT '' AS pid,'--' AS pname,'' AS cid,'总合计:' AS cname,'' AS ct1id,'--' AS ct1name,'' AS ct2id,'--' AS ct2name, SUM(week1) AS week1,SUM(week2) AS week2,SUM(week3) AS week3,SUM(week4) AS week4,SUM(heji) AS heji FROM tmp_result; IF ireport_chart  = 'report' OR ireport_chart  = 'REPORT' THEN SELECT pid,pName,cid,cName,ct1id,ct1Name,ct2id,ct2Name,week1,week2,week3,week4,heji FROM tmp_result; END IF; IF ireport_chart  = 'chart' OR ireport_chart  = 'CHART' THEN SELECT '' as pid,pName,'' as cid,'' as cName,'' as ct1id,'' as ct1Name,'' as ct2id,'' as ct2Name,SUM(week1) AS week1,SUM(week2) AS week2,SUM(week3) AS week3,SUM(week4) AS week4,'' as heji FROM (SELECT pid,cid,pname,cname,week1,week2,week3,week4 FROM tmp_result WHERE pname <> '--') AS ir GROUP BY pid; END IF; END IF; END $$

DELIMITER ;

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