DELIMITER $$
DROP PROCEDURE IF EXISTS `transferEmailTempData`$$
CREATE PROCEDURE transferEmailTempData(IN jobId VARCHAR(24))
BEGIN
DECLARE idval VARCHAR(24) DEFAULT '';
DECLARE taskIdval VARCHAR(24) DEFAULT '';
DECLARE groupIdval VARCHAR(24) DEFAULT '';
DECLARE emailval VARCHAR(50) DEFAULT '';
/*标识正式表是否存在一条相同数据，即：groupId、email相同*/
DECLARE infoId VARCHAR(24) DEFAULT '';
/*标识事务错误*/
DECLARE err INT DEFAULT 0;
/*达到一定数量就进行提交，计数器*/
DECLARE counts INT DEFAULT 0;
/*标识是否回滚过*/
DECLARE isrollback INT DEFAULT 0;
/*游标遍历时，作为判断是否遍历完全部记录的标记*/
DECLARE done INTEGER DEFAULT 0;
/*获取临时表该任务的数据*/
DECLARE cur CURSOR FOR SELECT id,taskId,groupId,email FROM `t_email_data_temp` WHERE taskId=jobId;
/*根据群组id、email查询是否存在相同记录*/
DECLARE cur2 CURSOR FOR SELECT id FROM `t_email_info` e WHERE e.`group_id` = groupIdval AND e.`email_address` = emailval;
/* 出现错误，设置为1，只要发生异常就回滚*/
DECLARE CONTINUE HANDLER FOR SQLEXCEPTION SET err=1;
/*声明当游标遍历完全部记录后将标志变量置成某个值*/
DECLARE CONTINUE HANDLER FOR NOT FOUND
SET done=1;
/*开启事务*/
START TRANSACTION;
/*打开游标*/
OPEN cur;
/*使用LOOP循环遍历*/
out_loop:LOOP
/*将每一条结果对应的字段值赋值给变量*/
FETCH cur INTO idval,taskIdval,groupIdval,emailval;
IF done = 1 THEN
LEAVE out_loop;
END IF;
/*打开第二个游标*/
OPEN cur2;
SET done = 0;
FETCH cur2 INTO infoId;
/*如果正式表不存在相同groupId and email记录，添加到正式表*/
IF done = 1 THEN
/*插入正式表*/
INSERT INTO `t_email_info` VALUES(idval,emailval,groupIdval,0,'',NOW(),'admin',NOW(),'admin');
/*删除临时数据*/
DELETE FROM `t_email_data_temp` WHERE id = idval;
/*计数器，每1000条才提交*/
SET counts = counts + 1;
/*发生异常，回滚*/
IF err=1 THEN
SET isrollback=1;
ROLLBACK;
ELSE
IF counts = 1000 THEN
COMMIT;
/*达到1000条提交后，重置计数器*/
SET counts=0;
END IF;
END IF;
ELSE
/*已经存在相同记录，则删除该记录*/
IF done=0 THEN
DELETE FROM `t_email_data_temp` WHERE id = idval;
END IF;
END IF;
FETCH cur2 INTO infoId;
CLOSE cur2;
/*控制外部的循环，该步骤不能缺少，否则只循环一次就结束了*/
SET done=0;
END LOOP out_loop;
CLOSE cur;
/*如果没有发生过回滚事件，则更新task状态*/
/*如果回滚过，不更新task状态，下次执行任务的时候，会再次将剩余没有提交的数据进行添加到正式表*/
IF isrollback=0 THEN
UPDATE `t_email_task` t SET t.`if_finish` = 1 WHERE t.`id`=jobId;
END IF;
END$$
DELIMITER ;
