What are the basic principles of database design?

Basic principles of database design: 1. The database must be clearly hierarchical and reasonably laid out; 2. Set up corresponding security mechanisms. Since the information in the database has specific confidentiality requirements for specific users, security mechanisms are essential. Less; 3. The database must be highly structured.

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 carry out data maintenance work. By using this principle, the occurrence of maintenance problems can be minimized, ensuring the smooth development of data maintenance work and reducing the difficulty of maintenance work. During this process, try to avoid 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.

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