oracle 日志-oracle 异常事务回滚

create or replace procedure testcomitandexp()as
begin
insert into dept(deptno,dname,loc) values(50,'Tname','China');
insert into dept(deptno,dname,loc) values(60,'Tname1','China1');
insert into dept(deptno,dname,loc) values(7066666,'Tname2','China2');
dbms_output.put_line('insert is finish.please check');
commit;
exception when others then
rollback;
dbms_output.put_line('this insert is rollback.please check');
end