What is the independence of physical data in the database

This article will explain in detail what is the independence of physical data in the database, and the content of the article is of high quality, so the editor will share it with you for reference. I hope you will have a certain understanding of the relevant knowledge after reading this article.

Physical data independence in the database means that the user's application and the data stored in the database on disk are independent of each other.

Data independence includes physical independence and logical independence of data.

Physical independence means that the user's application is independent of the data stored in the database on disk. That is, how the data is stored on disk is managed by DBMS, the user program does not need to understand, and the application needs to deal with only the logical structure of the data, so that when the physical storage of the data changes, the application does not have to change.

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