Decode of specific Employee Jobs

Question

select decode(empno,(select 7369 from dual union select 7654 from dual union select 7762 from dual) ,'INVALID JOB',JOB)
from scott.emp
i cant hardcode the employee number.. but when for specific employees which is returned from sql statement i need to decode the Job.
Pls suggest,

Answer 1

SQL> select empno, ename, case when empno in (7369,7654,7762)
  2                            then 'INVALID JOB'
  3                            else JOB
  4                       end job
  5  from emp;
     EMPNO ENAME      JOB
      7369 SMITH      INVALID JOB
      7499 ALLEN      SALESMAN
      7521 WARD       SALESMAN
      7566 JONES      MANAGER
      7654 MARTIN     INVALID JOB
      7698 BLAKE      MANAGER
      7782 CLARK      MANAGER
      7788 SCOTT      ANALYST
      7839 KING       PRESIDENT
      7844 TURNER     SALESMAN
      7876 ADAMS      CLERK
      7900 JAMES      CLERK
      7902 FORD       ANALYST
      7934 MILLER     CLERK
14 rows selected.Max