Finding Nth min/max salary using SQL

To find Nth minimum salary:

1.In SQL Server 2005

SELECT * FROM (SELECT salary,Dense_rank() OVER (ORDER BY Salary) AS Rank FROM employees) t1 WHERE Rank=N

2.In SQL Server 2000/2005

SELECT salary FROM employees e1 WHERE (N = (SELECT COUNT(DISTINCT (e2.salary))
FROM employees e2 WHERE e2.salary <= e1.salary))

To find Nth maximum salary:

1.In SQL Server 2005

SELECT * FROM (SELECT salary,Dense_rank() OVER (ORDER BY Salary desc) AS Rank FROM employees) t1 WHERE Rank=N

2.In SQL Server 2000/2005

SELECT salary FROM employees e1 WHERE (N = (SELECT COUNT(DISTINCT (e2.salary))
FROM employees e2 WHERE e2.salary >= e1.salary))

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