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This article will explain in detail what the advantages of object-relational mapping ORM are, and the content of the article is of high quality, so the editor will share it for you as a reference. I hope you will have a certain understanding of the relevant knowledge after reading this article.

Object-relational mapping (ORM) provides conceptual and easy-to-understand methods for modeling data. The ORM methodology is based on three core principles: simplicity-modeling data in the most basic form; accessibility-database structures are documented in a language that anyone can understand; and accuracy-creating correct standardized structures based on data models. Modelers develop information models by collecting information from data modelers who are familiar with the application but are not skilled at it. Modelers must be able to communicate with data structures at the conceptual level in terms that non-technical enterprise experts can understand. The modeler must also be able to analyze the information in simple units and process the sample data. ORM is specifically designed to improve this connection.

The advantages of object-relational mapping ORM are:

Object-oriented is developed from the basic principles of software engineering (such as coupling, aggregation, encapsulation), while relational database is developed from mathematical theory, there is a significant difference between the two theories. In order to solve this mismatch, object-relational mapping technology arises at the historic moment.

ORM has the following advantages:

1. Improve the development efficiency and reduce the development cost. Because ORM can automatically map properties and fields between Entity objects and Table in the database, we may not need a dedicated, huge data access layer.

2. Only object-oriented programming is needed, and there is no need to write code for database.

Operations on the database are converted into operations on the class.

There is no need to write SQL statements for various databases.

3. The details of data access are hidden, thus the data model is decoupled from the database, and the differences in different database operations are shielded.

Don't worry about what kind of database you are using.

The database can be easily replaced with simple configuration without changing the code.

On the object-relational mapping ORM has any advantages to share here, I hope that the above content can be of some help to you, can learn more knowledge. If you think the article is good, you can share it for more people to see.

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