Common data models for database management systems are

1, hierarchical model, the data is organized into a one-to-many relationship structure, hierarchical structure using keywords to access each part of each of these levels.

2, mesh model, using connection commands or pointers to determine the explicit connection relationship between the data, is with many-to-many type of data organization.

3, relational model, with record groups or data tables to organize data in the form of data, is to establish the relationship between spatial data and attribute data is a very effective method of data organization.