delete from /test/alert_status ; delete from /test/malert_status ; delete from /test/malert_status_seq ; -- 等待清除动作完成 -- { sleep(3s) } ; select id FROM /test/alert_status -- { count(0) } ; select id FROM /test/malert_status -- { count(0) } ; select id FROM /test/malert_status_seq -- { count(0) } ;