Oracle触发器之before delete

下面帖出来，也供新手参考：

1.创建表：

create table test1(CardID number, Name NVARCHAR2(20), Sex NUMBER);
create table test2(CardID number, Name NVARCHAR2(20));
create table test3(CardID number, Name NVARCHAR2(20));

2.触发器--删除Test2中的记录时将其备份到Test3：

create or replace trigger Trig_Del_Backup
after delete
on test2
for each row
declare
--fdsfaf
begin
insert into test3 values(:old.cardid, :old.name);
end
;
/

3.触发器--删除Test2时同时删除Test1：

create or replace trigger Trig_Del
after delete
on test2
for each row
declare
--fdsfaf
begin
delete from test1 where CardID=:old.CardID and Name=:old.name;
end
;
/