MySQL 触发器的问题：如何得到delete操作的结果集？

[hslinux]

MS SQL Server 里面，有一个Deleted临时表，MySQL 该如何去操作？

MS SQL Server:
CREATE TRIGGER `dbname`.`triggername` AFTER DELETE
ON dbname.table1 FOR EACH ROW
BEGIN
delete from table2 where id in
(select idfrom Deleted);
END;

其他insert,update操作后的临时表又存在不？该如何操作？

刚接触MySQL时间不长，请大虾们多多指教。

[hslinux]

Table 'dbname.old' doesn't exist

是不是还有什么开关打开临时表？

[懒得去死]

DELIMITER $$

DROP TRIGGER /*!50114 IF EXISTS */ `test`.`tr_delete`$$

CREATE TRIGGER `test`.`tr_delete` AFTER DELETE on `test`.`t11_replicas`
FOR EACH ROW BEGIN
  delete from t11 where id = old.id;
END$$

DELIMITER ;

select * from t11_replicas where id =2;

query result(1 records)
id str 
2 This is a test 2 

select * from t11 where id =2;

query result(1 records)
id str 
2 23434343 
delete from t11_replicas where id =2;

(1 row(s)affected)
(0 ms taken)
select * from t11 where id =2;
Empty set (0.00 sec)

[XFliangwh]

不能够直接(select id from OLD)的，只能通过 （old|new).列名 的方式使用。

[XFliangwh]

OLD 表示操作前的表
NEW 表示操作后的表

OLD.status 就是 表 更新或插入删除前对应记录的status字段值
NEW.status 就是 表 更新或插入删除后对应记录的status字段值

[XFliangwh]

还有一点，对于INSERT语句,只有NEW是合法的；对于DELETE语句，只有OLD才合法；而UPDATE语句可以在和NEW以及OLD同时使用。

[懒得去死]

MYSQL 中的临时表叫做OLD


delete from table2 where id in
(select id from OLD);

[loveme1204]

CREATE TRIGGER `dbname`.`triggername` AFTER DELETE
ON dbname.table1 FOR EACH ROW
BEGIN
delete from table2 where id in
(select id from OLD);
END;