文件名称：oracle实验pl/sal
文件大小：5KB
文件格式：TXT
更新时间：2018-05-19 16:16:57
pl/sal
pl/sal Create or replace trigger delete_student After delete on student For each row Begin Insert into backstudent values(:old.sno,:old.sname,:old.ssex,:old.sage,:old.sdept,:old.Birthday,sysdate); end delete_student; /