mysql定时任务【MySQL】

数据库|mysql教程 bitsCN.com 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() 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 = 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 ;

作者“李丽芬的博客”

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