drop table #temp; select bid into #temp FROM sign.sign WHERE no='3503221'; delete from student WHERE bid IN (SELECT * FROM #temp); delete from score WHERE bid IN (SELECT * FROM #temp); delete from examine WHERE bid IN (SELECT * FROM #temp);
2、mysql临时表
create temporary table tmp_student select sid from student where cid=158105; update class set a_status=1 WHERE sid in ( select * from tmp_student ); update score set b_status=1 where sid in ( select * from tmp_student );
3、oracle 临时表