关系模型和文档模型之间的区别

1.关系模型：
关系模型是用于数据库管理的模型。之所以这样称呼，是因为数据是以关系的形式(即表的形式)存储的。每行都包含相关数据。表格中的这些行描述了一个真实世界的实体。要使用Python和Relational数据模型，我们需要具备SQL和Pandas的先决条件知识。 Pandas是Python库。

2.文件模型：
在文档模型中，数据以文档形式存储。文件由描述文件实际和数据的记录组成。嵌套文档可用于提供有关数据子类别的信息。文档也可以用来代表现实世界的对象。

关系模型和文档模型之间的区别：

Relational Model	Document Model
It is row-based.	It is document-based.
Not suitable for hierarchical data storage.	Generally used for hierarchical data storage.
It consists of a predefined schema.	It consists a dynamic schema.
ACID properties are followed by this model. (Atomicity, Consistency, Isolation, and Durability).	CAP theorem are followed by this model. (Consistency, Availability, and Partition tolerance).
It is slower .	It is faster than Relational Model.
Supports complex joins.	Does Not support for complex joins.
It is column-based.	It is field-based.	They are vertically scalable	They are horizontally scalable	East replication support is not provided.	They provide easy replication support
It is more used now-a-days to store data in database.	It is comparatively less used.