関連ワード:  sql query 4th highest salary    sql query nth highest salary    sql query for nth highest salary in oracle    sql query find nth highest salary using rownum    sql query to find nth highest salary using dense_rank    sql query to find nth highest salary department wise    sql query to find nth highest salary using limit    sql query to find nth highest salary from employee table    sql query to return nth highest salary    sql query to find nth highest salary of employee