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

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