Mysql

关注公众号 jb51net

关闭
首页 > 数据库 > Mysql > mysql触发器一个表改变另一表也改变

mysql触发器一个表改变另一个表也改变问题

作者:Raya_L

这篇文章主要介绍了mysql触发器一个表改变另一个表也改变问题,具有很好的参考价值,希望对大家有所帮助,如有错误或未考虑完全的地方,望不吝赐教

mysql触发器一个表改变另一个也改变

主表:

副表:

删除:

 
DELIMITER $$
USE `motooling`$$
DELIMITER ;
DROP TRIGGER IF EXISTS `pm_pg_member_delete`;
DELIMITER ;;
CREATE TRIGGER `pm_pg_member_delete` AFTER DELETE ON `user_company` FOR EACH ROW BEGIN
	SELECT dep_id INTO @procId FROM department WHERE dep_code='Production_Dept' AND company_id=old.company_id;
	SELECT dep_id INTO @depIds FROM department WHERE dep_id=old.dep_id AND CONCAT('|', all_upper_ids, '|') REGEXP CONCAT('|', @procId, '|');
	IF old.dep_id IN (@depIds) THEN
		DELETE FROM pm_pg_member WHERE pg_id=old.dep_id AND member_id=old.uid;
	END IF;
END
;;
DELIMITER ;
 

添加:

 
DELIMITER $$
USE `motooling`$$
DELIMITER ;
DROP TRIGGER IF EXISTS `pm_pg_member_insert`;
DELIMITER ;;
CREATE TRIGGER `pm_pg_member_insert` AFTER INSERT ON `user_company` FOR EACH ROW BEGIN
	SELECT dep_id INTO @procId FROM department WHERE dep_code='Production_Dept' AND company_id=new.company_id;
	SELECT dep_id INTO @depIds FROM department WHERE dep_id=new.dep_id AND CONCAT('|', all_upper_ids, '|') REGEXP CONCAT('|', @procId, '|');
	IF new.dep_id IN (@depIds) THEN
		SELECT dep_id INTO @depId FROM user_company WHERE id=new.id;
		SELECT uid INTO @uid FROM user_company WHERE id=new.id;
		SELECT work_name INTO @workName FROM user_company WHERE id=new.id;
		SELECT is_leader INTO @isLeader FROM user_company WHERE id=new.id;
		SELECT pri INTO @pri FROM user_company WHERE id=new.id;
		SELECT is_schedule INTO @isSchedule FROM user_company WHERE id=new.id;
		SELECT skill_level_id INTO @skillLevelId FROM user_company WHERE id=new.id;
		SELECT skill_level_name INTO @skillLevelName FROM user_company WHERE id=new.id;
		SELECT furlough_start_date INTO @furloughStartDate FROM user_company WHERE id=new.id;
		SELECT furlough_end_date INTO @furloughEndDate FROM user_company WHERE id=new.id;
		SELECT is_show_effic INTO @isShowEffic FROM user_company WHERE id=new.id;
		SELECT work_state INTO @workState FROM user_company WHERE id=new.id;
		SELECT last_pop_id INTO @LastPopId FROM user_company WHERE id=new.id;
		SELECT handler_id INTO @handlerId FROM user_company WHERE id=new.id;
		SELECT created_at INTO @createdAt FROM user_company WHERE id=new.id;
		SELECT updated_at INTO @updatedAt FROM user_company WHERE id=new.id;
		SELECT STATUS INTO @status FROM user_company WHERE id=new.id;
		INSERT INTO pm_pg_member  (pg_id, member_id, member_name, is_leader, pri, is_schedule, skill_level_id, skill_level_name,
		furlough_start_date, furlough_end_date, is_show_effic, member_status, last_pop_id,
		handler_id, created_at, updated_at, STATUS) VALUES 
		(@depId,@uid,@workName,@isLeader,@pri,@isSchedule,@skillLevelId,@skillLevelName,@furloughStartDate,@furloughEndDate,@isShowEffic,@workState
		,@LastPopId,@handlerId,@createdAt, @updatedAt,@status);
	END IF;
END
;;
DELIMITER ;

修改:

 
DELIMITER $$
USE `motooling`$$
DELIMITER ;
DROP TRIGGER IF EXISTS `pm_pg_member_update`;
DELIMITER ;;
CREATE TRIGGER `pm_pg_member_update` AFTER UPDATE ON `user_company` FOR EACH ROW BEGIN	
		SELECT dep_id INTO @procId FROM department WHERE dep_code='Production_Dept' AND company_id=new.company_id;
	SELECT dep_id INTO @depIds FROM department WHERE dep_id=new.dep_id AND CONCAT('|', all_upper_ids, '|') REGEXP CONCAT('|', @procId, '|');
	IF new.dep_id IN (@depIds) THEN
		UPDATE pm_pg_member SET pg_id=new.dep_id, member_id=new.uid, member_name=new.work_name, is_leader=new.is_leader, pri=new.is_leader, is_schedule=new.is_schedule,
		 skill_level_id=new.skill_level_id, skill_level_name=new.skill_level_name,
		furlough_start_date=new.furlough_start_date, furlough_end_date=new.furlough_end_date, is_show_effic=new.is_show_effic,
		 member_status=new.work_state, last_pop_id=new.last_pop_id,
		handler_id=new.handler_id, created_at=new.created_at, updated_at=new.updated_at, STATUS=new.status
		WHERE pg_id=old.dep_id AND member_id=old.uid;
	END IF;
END
;;
DELIMITER ;

注:删除只有old,新增只有new,修改既有old又有new

mysql触发器:A表更新B表新增

创建触发器

CREATE TRIGGER T_TRIGGER_UPDATE 
BEFORE|AFTER UPDATE|INSERT|DELETE
ON 表A FOR EACH ROW
BEGIN
    insert into 表B(列1, 列2, ...) VALUES(NEW.列1, NEW.列2, ...);
END

解释:

T_TRIGGER_UPDATE为触发器名字;BEFORE|AFTER UPDATE|INSERT|DELETE:在更新之前或之后进行更新,插入或删除操作;

NEW表示进行相应操作的数据,如进行更新A表的操作,就表示要修改的A表的数据。

查看输出器

SHOW TRIGGERS;

删除指定的触发器

DROP trigger T_TRIGGER_UPDATE

总结

以上为个人经验,希望能给大家一个参考,也希望大家多多支持脚本之家。

您可能感兴趣的文章:
阅读全文