다음 트랜잭션 실행 결과로 올바른 것은?

create table t1 (no number);
insert into t1 values (1); 
insert into t1 values (2);
savepoint sv1; 
update t1 set no=4 where no=1;
savepoint sv1; 
delete from t1 where no >= 2; 
rollback to sv1;
insert into t1 values(3); 
commit;
select max(no) from t1;