How to standardize the database schema

This article will explain in detail how to standardize the database schema, Xiaobian thinks it is quite practical, so share it with you as a reference, I hope you can gain something after reading this article.

Normalization of database schema is carried out in the "logical design stage" of database design. The logical structure design of database is to transform the basic entity-relationship diagram designed in conceptual structure design stage into logical structure which is consistent with the data model supported by the selected database management system product.

Database design refers to constructing the optimal database schema for a given application environment, establishing the database and its application system, so that it can effectively store data and meet the application requirements of various users (information requirements and processing requirements). In the field of database, all kinds of systems using database are often called database application system.

The design contents of database design include: requirement analysis, conceptual structure design, logical structure design, physical structure design, database implementation and database operation and maintenance.

The logical structure design of database is to transform the basic entity-relationship diagram designed in conceptual structure design stage into logical structure which is consistent with the data model supported by the selected database management system product.

The logical structure is independent of any data model, and in practical applications, the database environment generally used has been given (such as SQL Server or Oracle or MySql). Because most of the databases in use are relational databases, it is necessary to convert entity-relationship diagrams into relational models at first, then convert them into data models supported by specified database management systems according to the characteristics and limitations of specific database management systems, and finally optimize them.

design steps

( 1 ) Transforming conceptual structure into general relational, network and hierarchical models;

( 2 ) converting the converted relational, mesh, and hierarchical models to data models supported by a designated database management system;

( 3 ) Optimize the data model.

About how to standardize the database schema to share here, I hope the above content can be of some help to everyone, you can learn more knowledge. If you think the article is good, you can share it so that more people can see it.