database table design best practices

that the database you designed is growing in this way, will it soon become a maze? So, is there any way to curb this unpredictability, but it is similar to repeated database expansion? I have read Agile Software Development: Principles, models, and practices and I have found similar examples: 7.3 "Copy" program. Among them, I strongly agree with the idea of Ag

Label:1. Each table is gradually the object +id, the primary key + auto increment. No GUID.2. Add 4 tracking fields per table: Insertdate,insertuserid, add time and add people, updatedate,updateuserid the last update time and update people, a total of four fields. If you are sure to use SQL SERVER, you can name it. if it is a product, in order to support multiple databases, or separate to good, such as: ins

The task assigned by the teacher, let's create a database table for the personnel management project of a province to express which organizations have positions and who are not on duty. The information should be imported into excel data. when a tag is transferred out, it also indicates where it is to be transferred or when a new person is required to enter. if this person disappears, it needs to be deregist

Database optimization includes the following three parts: Database optimization, database table optimization, and program operation optimization. This article is the second part.Optimization ①: design a standardized table to elimi

(wares_width ). After a while, the boss has some new products that need to be added with the "height" attribute. Do you feel that the database you designed is growing in this way, will it soon become a maze? So, is there any way to curb this unpredictability, but it is similar to repeated database expansion? I have read Agile Software Development: Principles, models, and

constraintsLength_id int no duplicate product image ID, primary keyWares_id int cannot be empty product identifier, associated with Wares_info.wares_idLength char (20) cannot be empty item length description Not long after the change, the boss planned to add a new batch of products. this time, all the products of this type need to be added with the "width" attribute. You have bitten your teeth, caught your teeth, and added the commodity width table (

data into the student table, with the following data:School Number: 04265005, Name: Liu Hui, gender: male, Age: 21, Department: Computer Department Use stu_db inserts into student (Sno, Sname, Ssex, Sage, sdept) VALUES (' 04265005 ', ' Liu Hui ', ' Male ', 21, ' computer Department ') Inse RT into student (Sno, Sname, Ssex, Sage) VALUES (' 04265006 ', ' Li Hui ', ' female ', 21) Insert data into the TA1 table