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How many data models can be divided into databases? Perhaps many people do not understand, in order to let you understand better, the editor summed up the following content, I hope you can gain something according to this article.

According to the organizational form of the data, the data model can be divided into hierarchical model, mesh model and relational model.

Hierarchical model uses tree structure to describe the relationship between entities; mesh model uses graph structure to describe the relationship between entities; relational model uses two-dimensional table to describe the relationship between entities.

Let's talk about it separately:

Hierarchical model

The data is organized into an one-to-many relationship structure, and the tree structure is used to represent the entity and the relationship between entities.

Reticular model

Using connection instructions or pointers to determine the mesh connection between data is a many-to-many type of data organization.

Relation model

Organize data in the form of record groups or data tables, so as to make use of the relationship between various entities and attributes for storage and transformation, without layering and without pointers. It is a very effective data organization method to establish the relationship between spatial data and attribute data.

The above is a detailed introduction of the three data models in the database shared by the editor. If you have similar doubts, you might as well refer to the above method to try. If you want to know more about it, please follow the industry information.

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