Table: Employees
\n+----------------+---------+\n| Column Name | Type | \n+----------------+---------+\n| employee_id | int |\n| employee_name | varchar |\n| manager_id | int |\n| salary | int |\n| department | varchar |\n+----------------+----------+\nemployee_id is the unique key for this table.\nEach row contains information about an employee, including their ID, name, their manager's ID, salary, and department.\nmanager_id is null for the top-level manager (CEO).\n\n\n
Write a solution to analyze the organizational hierarchy and answer the following:
\n\n1, employees reporting directly to the CEO are level 2, and so on).Return the result table ordered by the result ordered by level in ascending order, then by budget in descending order, and finally by employee_name in ascending order.
\n\nThe result format is in the following example.
\n\n\n
Example:
\n\nInput:
\n\nEmployees table:
\n\n\n+-------------+---------------+------------+--------+-------------+\n| employee_id | employee_name | manager_id | salary | department |\n+-------------+---------------+------------+--------+-------------+\n| 1 | Alice | null | 12000 | Executive |\n| 2 | Bob | 1 | 10000 | Sales |\n| 3 | Charlie | 1 | 10000 | Engineering |\n| 4 | David | 2 | 7500 | Sales |\n| 5 | Eva | 2 | 7500 | Sales |\n| 6 | Frank | 3 | 9000 | Engineering |\n| 7 | Grace | 3 | 8500 | Engineering |\n| 8 | Hank | 4 | 6000 | Sales |\n| 9 | Ivy | 6 | 7000 | Engineering |\n| 10 | Judy | 6 | 7000 | Engineering |\n+-------------+---------------+------------+--------+-------------+\n\n\n
Output:
\n\n\n+-------------+---------------+-------+-----------+--------+\n| employee_id | employee_name | level | team_size | budget |\n+-------------+---------------+-------+-----------+--------+\n| 1 | Alice | 1 | 9 | 84500 |\n| 3 | Charlie | 2 | 4 | 41500 |\n| 2 | Bob | 2 | 3 | 31000 |\n| 6 | Frank | 3 | 2 | 23000 |\n| 4 | David | 3 | 1 | 13500 |\n| 7 | Grace | 3 | 0 | 8500 |\n| 5 | Eva | 3 | 0 | 7500 |\n| 9 | Ivy | 4 | 0 | 7000 |\n| 10 | Judy | 4 | 0 | 7000 |\n| 8 | Hank | 4 | 0 | 6000 |\n+-------------+---------------+-------+-----------+--------+\n\n\n
Explanation:
\n\nNote:
\n\n表：Employees
\n+----------------+---------+\n| Column Name | Type | \n+----------------+---------+\n| employee_id | int |\n| employee_name | varchar |\n| manager_id | int |\n| salary | int |\n| department | varchar |\n+----------------+----------+\nemployee_id 是这张表的唯一主键。\n每一行包含关于一名员工的信息，包括他们的 ID，姓名，他们经理的 ID，薪水和部门。\n顶级经理（CEO）的 manager_id 是空的。\n\n\n
编写一个解决方案来分析组织层级并回答下列问题：
\n\n1，CEO 的直接下属员工层级为 2，以此类推）。返回结果表以 层级 升序 排序，然后以预算 降序 排序，最后以 employee_name 升序 排序。
\n\n结果格式如下所示。
\n\n\n\n
示例：
\n\n输入：
\n\nEmployees 表：
\n\n\n+-------------+---------------+------------+--------+-------------+\n| employee_id | employee_name | manager_id | salary | department |\n+-------------+---------------+------------+--------+-------------+\n| 1 | Alice | null | 12000 | Executive |\n| 2 | Bob | 1 | 10000 | Sales |\n| 3 | Charlie | 1 | 10000 | Engineering |\n| 4 | David | 2 | 7500 | Sales |\n| 5 | Eva | 2 | 7500 | Sales |\n| 6 | Frank | 3 | 9000 | Engineering |\n| 7 | Grace | 3 | 8500 | Engineering |\n| 8 | Hank | 4 | 6000 | Sales |\n| 9 | Ivy | 6 | 7000 | Engineering |\n| 10 | Judy | 6 | 7000 | Engineering |\n+-------------+---------------+------------+--------+-------------+\n\n\n
输出：
\n\n\n+-------------+---------------+-------+-----------+--------+\n| employee_id | employee_name | level | team_size | budget |\n+-------------+---------------+-------+-----------+--------+\n| 1 | Alice | 1 | 9 | 84500 |\n| 3 | Charlie | 2 | 4 | 41500 |\n| 2 | Bob | 2 | 3 | 31000 |\n| 6 | Frank | 3 | 2 | 23000 |\n| 4 | David | 3 | 1 | 13500 |\n| 7 | Grace | 3 | 0 | 8500 |\n| 5 | Eva | 3 | 0 | 7500 |\n| 9 | Ivy | 4 | 0 | 7000 |\n| 10 | Judy | 4 | 0 | 7000 |\n| 8 | Hank | 4 | 0 | 6000 |\n+-------------+---------------+-------+-----------+--------+\n\n\n
解释：
\n\n注意：
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