/*修改老表的sql语句:*/
ALTER TABLE `realwar`.`commanders` ADD COLUMN `new_commanders_id` INT(11) NULL COMMENT '与新表关联的指挥官' AFTER `wild_type`;
/*添加一个触发器,将新表中的数据同步到老表*/
DELIMITER $$
/*在向新表中插入数据的时候,同时把老表commanders表添加一条数据*/
DROP TRIGGER /*!50032 IF EXISTS */ `insert_commanders`$$
CREATE
TRIGGER `insert_commanders` AFTER INSERT ON `t_player_com`
FOR EACH ROW BEGIN
IF NEW.play_com_id IS NOT NULL THEN
INSERT INTO commanders SET
ComName = NEW.com_name,/*指挥官名称*/
ComLevel = NEW.level,/*指挥官等级*/
UserName = NEW.user_name,/*玩家帐号*/
CityID = NEW.city_id,/*现在的城市编号*/
STATUS = NEW.act_status,/*状态*/
ModelId = NEW.com_id,/*基础指挥官id*/
new_commander_id = NEW.play_com_id;/*新表中的指挥官id*/
END IF;
END;
$$
DELIMITER ;
/*修改新表t_player_com的sql*/
ALTER TABLE `realwar`.`t_player_com` ADD COLUMN `old_commanders_id` INT(11) NULL COMMENT '与老表关联指挥官id字段' AFTER `lead_count`;
/*数据删除的同步,在t_player_com中删除一条记录,同时同步到老表(删除一条记录)*/
DELIMITER $$
CREATE
/*[DEFINER = { user | CURRENT_USER }]*/
TRIGGER `realwar`.`delete_commanders` AFTER DELETE
ON `realwar`.`t_player_com`
FOR EACH ROW BEGIN
DELETE FROM commanders WHERE new_commanders_id=OLD.play_com_id;/*删除新表中的一条记录,同时更新(删除老表中的数据)*/
END$$
DELIMITER ;
/*修改名字*/
DELIMITER $$
CREATE
/*[DEFINER = { user | CURRENT_USER }]*/
TRIGGER `realwar`.`update_commanders` AFTER UPDATE
ON `realwar`.`t_player_com`
FOR EACH ROW BEGIN
IF NEW.com_name!=OLD.com_name THEN
UPDATE commanders SET commanders.ComName=NEW.com_name WHERE commanders.new_commanders_id=OLD.play_com_id;/*更新指挥官的名字,同时更新老表中的数据*/
END IF;
END$$
DELIMITER ;