SQL & PL/SQL

Dear SQL experts, this the Oracle own oracle example tables and example SQL.

SELECT e.ename, e.sal, s.grade
FROM emp e, salgrade s
WHERE e.sal BETWEEN s.losal AND s.hisal

On no site on internet i could find the solution for point-1, though i was able to solve point-2.

1. if i want to see grade not applicable any employye that grade should appear with NULL ename and sal.
2. If i want to see employees lying outside of any grade

I modified the scott (EMP, SALGRADE) data as follows.

**************
Point-1 Plan
**************
TABLE: salgrade
GRADE LOSAL HISAL
1 700 1200
2 1201 1400
3 1401 2000
4 2001 3000
5 3001 9999
6 6000 10000 <------- New row

SELECT e.ename, e.sal, s.grade
FROM emp e, salgrade s
WHERE e.sal(+) BETWEEN s.losal AND s.hisal

**************
Point-2 Plan
**************
TABLE: salgrade
EMPNO ENAME SAL
8000 MR_XY 20000 <------- New row

No combination of Outer/Full Join working.

What am i doing wrong, Is inline SQL the only solution for SQLs having Between Clause. I was able to do it with Inline-SQLs

Thank you.