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; /
sal,ename BULK COLLECT INTO sal,ename BULK COLLECT INTO sal,ename BULK COLLECT INTO vsal,ename BULK COLLECT INTO sal,ename BULK COLLECT INTO sal,ename BULK COLLECT INTO sal,ename BULK COLLECT INTO
