sql - 需要有关 SQL Server 查询的帮助

Question

我想在 SQL Server 中编写这个查询

from (
    select DISTINCT salary 
    from employee 
    order by salary desc
) 
where rownum = 3;

Answer 1

参见 ROW_NUMBER() :

例如，

WITH EmployeeSalary AS
(
    select salary, 
        ROW_NUMBER() OVER (order by salary desc) AS 'RowNumber'
    FROM employee 
    group by salary --you can't use DISTINCT because ROW_NUMBER() makes each row distinct
) 
SELECT * 
FROM EmployeeSalary 
WHERE RowNumber = 3;