How to find nth highest salary from a table?

Code

1. EMPNO ENAME SAL
2. 1         A         5000
3. 2         B         2000
4. 3         C         10000
5.  
6. SELECT MIN(SAL) FROM (SELECT * FROM EMP ORDER BY SAL DESC)
7. WHERE ROWNUM <=2
   
   
   Same as nth highest query we need to put that number instead of 2.