leetcode数据库sql之Department Top Three Salaries

leetcode原文引用：

How would you print just the 10th line of a file?

For example, assume that file.txt has the following content:

Line 1 Line 2 Line 3 Line 4 Line 5 Line 6 Line 7 Line 8 Line 9 Line 10 

Your script should output the tenth line, which is:

Line 10

我的sql语句如下：

SELECT  d.name as department, e.name,e.salary
FROM Employee e JOIN Department d ON e.departmentid = d.id
and
    (SELECT   COUNT(DISTINCT (salary))
     FROM
            Employee
     WHERE
            departmentid = e.departmentid
     AND    salary > e.salary
     ) < 3
ORDER BY d.id ASC , e.salary DESC