What does the database design process not include?

The database design process does not include algorithm design. The database design process mainly includes requirements analysis, conceptual structure design, logical structure analysis, database physical design, database implementation, database operation and maintenance stages.

#The operating environment of this article: Windows 7 system, Dell G3 computer.

The database design process does not include algorithm design.

The database design process mainly includes requirements analysis, conceptual structure design, logical structure analysis, database physical design, database implementation, database operation and maintenance stages.

Introduction to database design:

Database Design refers to constructing the optimal database model for a given application environment, establishing the database and its applications system so that it can effectively store data and meet the application needs of various users (information requirements and processing requirements). In the field of databases, various systems that use databases are often collectively referred to as database application systems.

The design content of database design includes: requirements analysis, conceptual structure design, logical structure design, physical structure design, database implementation and database operation and maintenance.

Design principles

1. One-to-one design principle

In the software development process, it is necessary to follow the one-to-one relationship design principle to develop data Maintenance work, by using this principle, the occurrence of maintenance problems can be minimized, ensuring the smooth progress of data maintenance work and reducing the difficulty of maintenance work. During this process, try to avoid the phenomenon of large and complex data, otherwise it will not only affect the progress of software development, but also increase the difficulty of work and affect the quality of its products. Therefore, design staff must pay attention to this issue. At the same time, we fully understand the inevitable connections between entities to achieve the goal of information data dispersion. On this basis, we can improve the work efficiency of the overall staff and improve the reliability, scientificity, security and performance of software applications.

2. Unique Naming Principle

The application of unique naming principle is to reduce the phenomenon of repeated naming and standardized naming in the database design process. By applying this principle, data redundancy can be reduced, data consistency can be maintained, and there must be a certain corresponding relationship between keywords. The unique naming principle can train staff to be proficient in uppercase and lowercase letters, and is conducive to standardizing the development of back-end code work.

3. Two-way usage principle

The two-way usage principle includes: transaction usage principle and index function principle. First of all, the two-way usage principle is implemented based on the logical work unit model, which not only provides basic guarantee for non-transactional unit operations, but also ensures that it can update and obtain data resources in a timely manner. The effective application of the index function principle enables it to obtain more attribute column data information and flexibly sort it. Currently, common indexing modes in the software market include: clustered index for multi-row retrieval and non-clustered index for single-row retrieval.

For more related knowledge, please visit the FAQ column!

The above is the detailed content of What does the database design process not include?. For more information, please follow other related articles on the PHP Chinese website!