SQL query on emp table(SCOTT Schema): Highest salary per department

Question

From emp table of SCOTT schema. I would like to know the name, sal,the deptno he belongs of the highest paid employee from each dept.
Explaining further:
The following query only returns deptno and max(sal) of each department. I need the name of the highest paid employee from each dept along with the below result.
SQL> SELECT DEPTNO,MAX(SAL) FROM EMP GROUP BY deptno;
DEPTNO MAX(SAL)
30 2850
20 3000
10 5000

Answer 1

It seems you want just one ename if two employees have the same highest salary. In that case you can use this construct:
SQL> select deptno
  2       , max(sal)
  3       , max(ename) keep (dense_rank last order by sal)
  4    from emp
  5   group by deptno
  6  /
    DEPTNO   MAX(SAL) MAX(ENAME)
        10       5000 KING
        20       3000 SCOTT
        30       2850 BLAKE
3 rijen zijn geselecteerd.Regards,
Rob.