How to Find Last Row in the Table from SQL query!

Last Row in TABLE 

The only way to get the last row is for the Developer to have put a tiemstamp or some sequence number in there.Then you can

select * from t where
x = (select max(x) from t;

select * from emp
where rowid in(select max(rowid) from emp);

select * from emp
minus
select * from emp
where rownum < (select count(*) from emp);