Analysis of five popular database models

Source: Internet
Author: User
Keywords Data models data models implementations data models implementations functions data models implementations functions some kind data models implementations functions some kind provide

The guidance: Whether relational database or non relational database, it is a kind of http://www.aliyun.com/zixun/aggregation/14208.html "> Data Model implementation." This article will give you a brief introduction of 5 common data models, so that we can trace back to the mysterious world behind the current popular database solutions.

What is a data model?

Accessing data in a database depends on the data model of the database implementation. The data model affects the operation of the data by the client through the API. Different data models may provide more or less functionality. In general, the data model does not directly provide excessive functionality, and many features must be implemented by the client itself.

The data model determines how clients encode and store data. The application requires a domain model to map with the features supported by the storage technology.

So far, the dominant data model is still the relational model. Here, we mainly want to introduce the non-relational model, as a contrast, this article will briefly introduce the relationship model.

(Responsible editor: The good of the Legacy)

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