SQL分层查询最多10级

Question

我想编写一个SQL Server SELECT查询，以表格格式显示分层数据。

喜欢：员工向X经理报告，然后X经理向XX经理报告，然后XX经理向XXX经理报告 - 每行记录。

表格数据：

Input data format

输出格式：

output required format

Answer 1

简单，一起加入10个虚拟表

Select person, Person1, Person2, ...
from people
left join
    (
    select person as Person1, Manager as Manager2 from People
    ) as People1
        on people.Manager = Person1
left join
    (
    select person as Person2, Manager as Manager3 from People
    ) as People2
        on Manager2 = Person2
....