数据库 - 以下两种mongodb collection的设计哪种好一点？

Question

这是一个关于员工请假的设计
需要有获取所有员工下的请假数据的需求
也会有获取单个员工下的请假数据的需求
请问哪一种比较好?还是应该只保存leaveId，leave新建一个collection?

Answer 1

The second good point is that NoSQL makes the data flat and even has an appropriate amount of redundancy to reduce correlations, which can effectively improve efficiency. This is the so-called anti-paradigm design. The first type is more common in relational databases, which is the so-called paradigm design