文件名称:jiaoben
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create or replace trigger delete_emp
after delete on departments
for each row
begin
delete from employees
where departmentid=:old.departmentid
end delete_emp
-create or replace trigger delete_emp after delete on departments for each row begin delete from employees where departmentid =: old.departmentid end delete_emp
after delete on departments
for each row
begin
delete from employees
where departmentid=:old.departmentid
end delete_emp
-create or replace trigger delete_emp after delete on departments for each row begin delete from employees where departmentid =: old.departmentid end delete_emp
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下载文件列表
实验脚本/闪回删除.txt
实验脚本/实验六示范.txt
实验脚本/实验用脚本文件new.txt
实验脚本/数据泵.txt
实验脚本/3.sql
实验脚本/5.txt
实验脚本/6.txt
实验脚本/7.txt
实验脚本/闪回表.txt
实验脚本/4.sql
实验脚本
实验脚本/实验六示范.txt
实验脚本/实验用脚本文件new.txt
实验脚本/数据泵.txt
实验脚本/3.sql
实验脚本/5.txt
实验脚本/6.txt
实验脚本/7.txt
实验脚本/闪回表.txt
实验脚本/4.sql
实验脚本
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